diff --git a/internal/domain/main-entities/checkout-polies/dto.go b/internal/domain/main-entities/internal-reference/dto.go
similarity index 91%
rename from internal/domain/main-entities/checkout-polies/dto.go
rename to internal/domain/main-entities/internal-reference/dto.go
index 448efa46..5ac439b9 100644
--- a/internal/domain/main-entities/checkout-polies/dto.go
+++ b/internal/domain/main-entities/internal-reference/dto.go
@@ -1,4 +1,4 @@
-package checkout_polies
+package internal_reference
 
 import (
 	ecore "simrs-vx/internal/domain/base-entities/core"
@@ -54,7 +54,7 @@ type ResponseDto struct {
 	Doctor       *ed.Doctor    `json:"doctor,omitempty"`
 }
 
-func (d CheckoutPolies) ToResponse() ResponseDto {
+func (d InternalReference) ToResponse() ResponseDto {
 	resp := ResponseDto{
 		Encounter_Id: d.Encounter_Id,
 		Encounter:    d.Encounter,
@@ -67,7 +67,7 @@ func (d CheckoutPolies) ToResponse() ResponseDto {
 	return resp
 }
 
-func ToResponseList(data []CheckoutPolies) []ResponseDto {
+func ToResponseList(data []InternalReference) []ResponseDto {
 	resp := make([]ResponseDto, len(data))
 	for i, u := range data {
 		resp[i] = u.ToResponse()
diff --git a/internal/domain/main-entities/checkout-polies/entity.go b/internal/domain/main-entities/internal-reference/entity.go
similarity index 91%
rename from internal/domain/main-entities/checkout-polies/entity.go
rename to internal/domain/main-entities/internal-reference/entity.go
index d329fc52..56dcdc19 100644
--- a/internal/domain/main-entities/checkout-polies/entity.go
+++ b/internal/domain/main-entities/internal-reference/entity.go
@@ -1,4 +1,4 @@
-package checkout_polies
+package internal_reference
 
 import (
 	ecore "simrs-vx/internal/domain/base-entities/core"
@@ -7,7 +7,7 @@ import (
 	eu "simrs-vx/internal/domain/main-entities/unit"
 )
 
-type CheckoutPolies struct {
+type InternalReference struct {
 	ecore.Main
 	Encounter_Id *uint         `json:"encounter_id"`
 	Encounter    *ee.Encounter `json:"encounter,omitempty" gorm:"foreignKey:Encounter_Id;references:Id"`
diff --git a/internal/interface/main-handler/checkout-polies/handler.go b/internal/interface/main-handler/internal-reference/handler.go
similarity index 76%
rename from internal/interface/main-handler/checkout-polies/handler.go
rename to internal/interface/main-handler/internal-reference/handler.go
index f7833032..ca5afdc9 100644
--- a/internal/interface/main-handler/checkout-polies/handler.go
+++ b/internal/interface/main-handler/internal-reference/handler.go
@@ -1,12 +1,13 @@
-package checkout_polies
+package internal_reference
 
 import (
 	"net/http"
 
-	ecp "simrs-vx/internal/domain/main-entities/checkout-polies"
-	ucp "simrs-vx/internal/use-case/main-use-case/checkout-polies"
+	eir "simrs-vx/internal/domain/main-entities/internal-reference"
+	uir "simrs-vx/internal/use-case/main-use-case/internal-reference"
 
 	rw "github.com/karincake/risoles"
+	sf "github.com/karincake/semprit"
 )
 
 type myBase struct{}
@@ -14,20 +15,20 @@ type myBase struct{}
 var O myBase
 
 func (obj myBase) Create(w http.ResponseWriter, r *http.Request) {
-	dto := ecp.CreateDto{}
+	dto := eir.CreateDto{}
 	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
 		return
 	}
 
-	res, err := ucp.Create(dto)
+	res, err := uir.Create(dto)
 	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
-	//dto := e.ReadListDto{}
-	//sf.UrlQueryParam(&dto, *r.URL)
-	//res, err := u.ReadList(dto)
-	//rw.DataResponse(w, res, err)
+	dto := eir.ReadListDto{}
+	sf.UrlQueryParam(&dto, *r.URL)
+	res, err := uir.ReadList(dto)
+	rw.DataResponse(w, res, err)
 }
 
 func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
diff --git a/internal/interface/main-handler/main-handler.go b/internal/interface/main-handler/main-handler.go
index c54a449c..63448f21 100644
--- a/internal/interface/main-handler/main-handler.go
+++ b/internal/interface/main-handler/main-handler.go
@@ -6,13 +6,13 @@ import (
 	/******************** main / transaction ********************/
 	adime "simrs-vx/internal/interface/main-handler/adime"
 	auth "simrs-vx/internal/interface/main-handler/authentication"
-	checkoutpolies "simrs-vx/internal/interface/main-handler/checkout-polies"
 	chemo "simrs-vx/internal/interface/main-handler/chemo"
 	consultation "simrs-vx/internal/interface/main-handler/consultation"
 	counter "simrs-vx/internal/interface/main-handler/counter"
 	deviceorder "simrs-vx/internal/interface/main-handler/device-order"
 	deviceorderitem "simrs-vx/internal/interface/main-handler/device-order-item"
 	encounter "simrs-vx/internal/interface/main-handler/encounter"
+	internalreference "simrs-vx/internal/interface/main-handler/internal-reference"
 	materialorder "simrs-vx/internal/interface/main-handler/material-order"
 	materialorderitem "simrs-vx/internal/interface/main-handler/material-order-item"
 	mcuorder "simrs-vx/internal/interface/main-handler/mcu-order"
@@ -233,7 +233,7 @@ func SetRoutes() http.Handler {
 		"PATCH /{id}/reject": chemo.O.Reject,
 	})
 
-	hc.RegCrud(r, "/v1/checkout-poly", checkoutpolies.O)
+	hc.RegCrud(r, "/v1/internal-reference", internalreference.O)
 
 	/******************** actor ********************/
 	hc.RegCrud(r, "/v1/person", person.O)
diff --git a/internal/interface/migration/main-entities.go b/internal/interface/migration/main-entities.go
index b1875a8f..3821e982 100644
--- a/internal/interface/migration/main-entities.go
+++ b/internal/interface/migration/main-entities.go
@@ -4,7 +4,6 @@ import (
 	adime "simrs-vx/internal/domain/main-entities/adime"
 	ambulatory "simrs-vx/internal/domain/main-entities/ambulatory"
 	appointment "simrs-vx/internal/domain/main-entities/appointment"
-	checkoutpolies "simrs-vx/internal/domain/main-entities/checkout-polies"
 	chemo "simrs-vx/internal/domain/main-entities/chemo"
 	consultation "simrs-vx/internal/domain/main-entities/consultation"
 	counter "simrs-vx/internal/domain/main-entities/counter"
@@ -25,6 +24,7 @@ import (
 	inpatient "simrs-vx/internal/domain/main-entities/inpatient"
 	installation "simrs-vx/internal/domain/main-entities/installation"
 	insurancecompany "simrs-vx/internal/domain/main-entities/insurance-company"
+	checkoutpolies "simrs-vx/internal/domain/main-entities/internal-reference"
 	item "simrs-vx/internal/domain/main-entities/item"
 	itemprice "simrs-vx/internal/domain/main-entities/item-price"
 	laborant "simrs-vx/internal/domain/main-entities/laborant"
diff --git a/internal/use-case/main-use-case/checkout-polies/helper.go b/internal/use-case/main-use-case/checkout-polies/helper.go
deleted file mode 100644
index 884e6cca..00000000
--- a/internal/use-case/main-use-case/checkout-polies/helper.go
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
-DESCRIPTION:
-Any functions that are used internally by the use-case
-*/
-package checkout_polies
-
-import (
-	"errors"
-	"fmt"
-	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
-	"strings"
-
-	e "simrs-vx/internal/domain/main-entities/encounter"
-	es "simrs-vx/internal/domain/main-entities/soapi"
-
-	edo "simrs-vx/internal/domain/main-entities/device-order"
-	emo "simrs-vx/internal/domain/main-entities/material-order"
-	emco "simrs-vx/internal/domain/main-entities/mcu-order"
-	em "simrs-vx/internal/domain/main-entities/medication"
-	emei "simrs-vx/internal/domain/main-entities/medication-item"
-	emi "simrs-vx/internal/domain/main-entities/medicine-mix"
-	emmi "simrs-vx/internal/domain/main-entities/medicine-mix-item"
-	ep "simrs-vx/internal/domain/main-entities/prescription"
-	epi "simrs-vx/internal/domain/main-entities/prescription-item"
-
-	// udo "simrs-vx/internal/use-case/main-use-case/device-order"
-	um "simrs-vx/internal/use-case/main-use-case/medication"
-	umei "simrs-vx/internal/use-case/main-use-case/medication-item"
-	umi "simrs-vx/internal/use-case/main-use-case/medicine-mix"
-	ummi "simrs-vx/internal/use-case/main-use-case/medicine-mix-item"
-	up "simrs-vx/internal/use-case/main-use-case/prescription"
-	upi "simrs-vx/internal/use-case/main-use-case/prescription-item"
-
-	pl "simrs-vx/pkg/logger"
-	pu "simrs-vx/pkg/use-case-helper"
-
-	erc "simrs-vx/internal/domain/references/common"
-	ero "simrs-vx/internal/domain/references/organization"
-
-	"gorm.io/gorm"
-)
-
-func setData[T *cp.CreateDto | *cp.UpdateDto](input T, data *cp.CheckoutPolies) {
-	var inputSrc *cp.CreateDto
-	if inputT, ok := any(input).(*cp.CreateDto); ok {
-		inputSrc = inputT
-	} else {
-		inputTemp := any(input).(*cp.UpdateDto)
-		inputSrc = &inputTemp.CreateDto
-	}
-
-	data.Encounter_Id = inputSrc.Encounter_Id
-	data.Unit_Id = inputSrc.Unit_Id
-	data.Doctor_Id = inputSrc.Doctor_Id
-}
-
-func setDataUpdate(src e.UpdateDto, dst *e.Encounter) {
-	dst.Appointment_Doctor_Id = src.Appointment_Doctor_Id
-	dst.Responsible_Doctor_Id = src.Responsible_Doctor_Id
-	dst.Unit_Id = src.Unit_Id
-	dst.Specialist_Id = src.Specialist_Id
-	dst.Subspecialist_Id = src.Subspecialist_Id
-	dst.VisitDate = src.VisitDate
-}
-
-func setDataDischarge(src e.DischargeDto, dst *e.Encounter) {
-	dst.DischargeMethod_Code = src.DischargeMethod_Code
-	dst.EarlyEducation = src.EarlyEducation
-	dst.MedicalDischargeEducation = src.MedicalDischargeEducation
-	dst.AdmDischargeEducation = src.AdmDischargeEducation
-	dst.DischargeReason = src.DischargeReason
-	dst.Status_Code = erc.DSCDone
-}
-
-func checkSoapiByDocExists(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "checkSoapiByDocExists")
-	var soapies []es.Soapi
-	err := tx.
-		Preload("Employee").
-		Preload("Employee.User").
-		Where("\"Encounter_Id\" = ?", encounter_id).Find(&soapies).Error
-	if err != nil {
-		event.Status = "failed"
-		event.ErrInfo = pl.ErrorInfo{
-			Code:   "data-get-fail",
-			Detail: "get soapi failed",
-			Raw:    err,
-		}
-		return pl.SetLogError(event, nil)
-	}
-
-	if len(soapies) == 0 {
-		event.Status = "failed"
-		event.ErrInfo = pl.ErrorInfo{
-			Code:   "data-notFound",
-			Detail: "no soapi found for encounter",
-			Raw:    errors.New("soapi not found"),
-		}
-		return pl.SetLogError(event, nil)
-	}
-
-	for _, s := range soapies {
-		if s.Employee != nil && s.Employee.User != nil && s.Employee.User.Position_Code == ero.UPCDoc {
-			return nil
-		}
-	}
-
-	event.Status = "failed"
-	event.ErrInfo = pl.ErrorInfo{
-		Code:   "data-update-fail",
-		Detail: "no soapi written by a doctor found",
-		Raw:    errors.New("all soapi employees are not doctors"),
-	}
-	return pl.SetLogError(event, nil)
-}
-
-func createMedication(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "createMedication")
-
-	prescription, err := up.ReadDetailData(ep.ReadDetailDto{Encounter_Id: &encounter_id}, event, tx)
-	if err != nil {
-		return err
-	}
-
-	prescriptionItem, _, err := upi.ReadListData(epi.ReadListDto{FilterDto: epi.FilterDto{Prescription_Id: &prescription.Id}}, event, tx)
-	if err != nil {
-		return err
-	}
-
-	if len(prescriptionItem) == 0 {
-		return nil
-	}
-
-	medicationCreate := em.CreateDto{
-		Encounter_Id: &encounter_id,
-		IssuedAt:     pu.GetTimeNow(),
-		Status_Code:  erc.DSCNew,
-	}
-	medication, err := um.CreateData(medicationCreate, event, tx)
-	if err != nil {
-		return err
-	}
-
-	for _, prescriptionItem := range prescriptionItem {
-		if prescriptionItem.IsMix {
-			medMix_id, err := createMedicineMixAndItem(*prescriptionItem.MedicineMix, event, tx)
-			if err != nil {
-				return err
-			}
-			prescriptionItem.MedicineMix_Id = medMix_id
-		}
-		err := createMedicationItem(medication.Id, prescriptionItem, event, tx)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func createMedicineMixAndItem(input emi.MedicineMix, event *pl.Event, tx *gorm.DB) (*uint, error) {
-	pl.SetLogInfo(event, nil, "started", "createMedicineMix")
-
-	medicineMixCreate := emi.CreateDto{
-		Name:     input.Name,
-		Uom_Code: input.Uom_Code,
-	}
-	medicineMix, err := umi.CreateData(medicineMixCreate, event, tx)
-	if err != nil {
-		return nil, err
-	}
-
-	// recreate medicineMixItem with new medicineMix_id to keep medMixItem remain the same for prescriptionItem that is created
-	for _, medicineMixItem := range input.MixItems {
-		medicineMixItemCreate := emmi.CreateDto{
-			MedicineMix_Id: &medicineMix.Id,
-			Medicine_Id:    medicineMixItem.Medicine_Id,
-			Dose:           medicineMixItem.Dose,
-		}
-		_, err := ummi.CreateData(medicineMixItemCreate, event, tx)
-		if err != nil {
-			return nil, err
-		}
-
-	}
-	return &medicineMix.Id, nil
-}
-
-func createMedicationItem(medication_id uint, input epi.PrescriptionItem, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "createMedicationItem")
-
-	medicationItemCreate := emei.CreateDto{
-		Medication_Id:     &medication_id,
-		IsMix:             input.IsMix,
-		Medicine_Id:       input.Medicine_Id,
-		MedicineMix_Id:    input.MedicineMix_Id,
-		Usage:             input.Usage,
-		Interval:          input.Interval,
-		IntervalUnit_Code: input.IntervalUnit_Code,
-		Quantity:          input.Quantity,
-	}
-
-	_, err := umei.CreateData(medicationItemCreate, event, tx)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func checkNewOrdersExist(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "CheckNewOrdersExist")
-	var errs []string
-	if err := getDeviceOrders(encounter_id, event, tx); err != nil {
-		errs = append(errs, err.Error())
-	}
-
-	if err := getMaterialOrders(encounter_id, event, tx); err != nil {
-		errs = append(errs, err.Error())
-	}
-
-	if err := getMcuOrders(encounter_id, event, tx); err != nil {
-		errs = append(errs, err.Error())
-	}
-
-	if len(errs) > 0 {
-		return fmt.Errorf("encounter has open orders: %s", strings.Join(errs, "; "))
-	}
-
-	return nil
-}
-
-func getDeviceOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "getDeviceOrders")
-	var orders []edo.DeviceOrder
-	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
-	if err != nil {
-		if err == gorm.ErrRecordNotFound {
-			return nil
-		}
-		event.Status = "failed"
-		event.ErrInfo = pl.ErrorInfo{
-			Code:   "data-get-fail",
-			Detail: "get device order failed",
-			Raw:    err,
-		}
-		return pl.SetLogError(event, nil)
-	}
-
-	if len(orders) > 0 {
-		return fmt.Errorf("encounter has %d device orders", len(orders))
-	}
-
-	return nil
-}
-
-func getMaterialOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "getMaterialOrders")
-	var orders []emo.MaterialOrder
-	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
-	if err != nil {
-		if err == gorm.ErrRecordNotFound {
-			return nil
-		}
-		event.Status = "failed"
-		event.ErrInfo = pl.ErrorInfo{
-			Code:   "data-get-fail",
-			Detail: "get material order failed",
-			Raw:    err,
-		}
-		return pl.SetLogError(event, nil)
-	}
-
-	if len(orders) > 0 {
-		return fmt.Errorf("encounter has %d material orders", len(orders))
-	}
-
-	return nil
-}
-
-func getMcuOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
-	pl.SetLogInfo(event, nil, "started", "getMcuOrders")
-	var orders []emco.McuOrder
-	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
-	if err != nil {
-		if err == gorm.ErrRecordNotFound {
-			return nil
-		}
-		event.Status = "failed"
-		event.ErrInfo = pl.ErrorInfo{
-			Code:   "data-get-fail",
-			Detail: "get mcu order failed",
-			Raw:    err,
-		}
-		return pl.SetLogError(event, nil)
-	}
-
-	if len(orders) > 0 {
-		return fmt.Errorf("encounter has %d mcu orders", len(orders))
-	}
-
-	return nil
-}
diff --git a/internal/use-case/main-use-case/checkout-polies/lib.go b/internal/use-case/main-use-case/checkout-polies/lib.go
deleted file mode 100644
index 5525e906..00000000
--- a/internal/use-case/main-use-case/checkout-polies/lib.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package checkout_polies
-
-import (
-	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
-	plh "simrs-vx/pkg/lib-helper"
-	pl "simrs-vx/pkg/logger"
-
-	dg "github.com/karincake/apem/db-gorm-pg"
-	"gorm.io/gorm"
-)
-
-func CreateData(input cp.CreateDto, event *pl.Event, dbx ...*gorm.DB) (*cp.CheckoutPolies, error) {
-	pl.SetLogInfo(event, nil, "started", "DBCreate")
-
-	data := cp.CheckoutPolies{}
-	setData(&input, &data)
-
-	var tx *gorm.DB
-	if len(dbx) > 0 {
-		tx = dbx[0]
-	} else {
-		tx = dg.I
-	}
-
-	if err := tx.Create(&data).Error; err != nil {
-		return nil, plh.HandleCreateError(input, event, err)
-	}
-
-	pl.SetLogInfo(event, nil, "complete")
-	return &data, nil
-}
diff --git a/internal/use-case/main-use-case/checkout-polies/case.go b/internal/use-case/main-use-case/internal-reference/case.go
similarity index 54%
rename from internal/use-case/main-use-case/checkout-polies/case.go
rename to internal/use-case/main-use-case/internal-reference/case.go
index 48bf9046..ccb2a5fe 100644
--- a/internal/use-case/main-use-case/checkout-polies/case.go
+++ b/internal/use-case/main-use-case/internal-reference/case.go
@@ -1,12 +1,13 @@
-package checkout_polies
+package internal_reference
 
 import (
 
 	// main entities
-	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
 	ed "simrs-vx/internal/domain/main-entities/doctor"
 	ee "simrs-vx/internal/domain/main-entities/encounter"
+	eir "simrs-vx/internal/domain/main-entities/internal-reference"
 	eu "simrs-vx/internal/domain/main-entities/unit"
+	"strconv"
 
 	// main use case
 	ud "simrs-vx/internal/use-case/main-use-case/doctor"
@@ -21,10 +22,10 @@ import (
 	"gorm.io/gorm"
 )
 
-const source = "checkout-polies"
+const source = "internal-reference"
 
-func Create(input cp.CreateDto) (*d.Data, error) {
-	data := cp.CheckoutPolies{}
+func Create(input eir.CreateDto) (*d.Data, error) {
+	data := eir.InternalReference{}
 
 	event := pl.Event{
 		Feature: "Create",
@@ -90,3 +91,56 @@ func Create(input cp.CreateDto) (*d.Data, error) {
 		Data: data.ToResponse(),
 	}, nil
 }
+
+func ReadList(input eir.ReadListDto) (*d.Data, error) {
+	var data *eir.InternalReference
+	var dataList []eir.InternalReference
+	var metaList *eir.MetaDto
+	var err error
+
+	event := pl.Event{
+		Feature: "ReadList",
+		Source:  source,
+	}
+
+	// Start log
+	pl.SetLogInfo(&event, input, "started", "readList")
+
+	err = dg.I.Transaction(func(tx *gorm.DB) error {
+		mwRunner := newMiddlewareRunner(&event, tx)
+		mwRunner.setMwType(pu.MWTPre)
+		// Run pre-middleware
+		if err := mwRunner.RunReadListMiddleware(readListPreMw, &input, data); err != nil {
+			return err
+		}
+
+		if dataList, metaList, err = ReadListData(input, &event, tx); err != nil {
+			return err
+		}
+
+		mwRunner.setMwType(pu.MWTPost)
+		// Run post-middleware
+		if err := mwRunner.RunReadListMiddleware(readListPostMw, &input, data); err != nil {
+			return err
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &d.Data{
+		Meta: d.IS{
+			"source":              source,
+			"structure":           "list-data",
+			"status":              "fetched",
+			"page_number":         strconv.Itoa(metaList.PageNumber),
+			"page_size":           strconv.Itoa(metaList.PageSize),
+			"record_totalCount":   strconv.Itoa(metaList.Count),
+			"record_currentCount": strconv.Itoa(len(dataList)),
+		},
+		Data: eir.ToResponseList(dataList),
+	}, nil
+}
diff --git a/internal/use-case/main-use-case/internal-reference/helper.go b/internal/use-case/main-use-case/internal-reference/helper.go
new file mode 100644
index 00000000..aaef382a
--- /dev/null
+++ b/internal/use-case/main-use-case/internal-reference/helper.go
@@ -0,0 +1,23 @@
+/*
+DESCRIPTION:
+Any functions that are used internally by the use-case
+*/
+package internal_reference
+
+import (
+	ir "simrs-vx/internal/domain/main-entities/internal-reference"
+)
+
+func setData[T *ir.CreateDto | *ir.UpdateDto](input T, data *ir.InternalReference) {
+	var inputSrc *ir.CreateDto
+	if inputT, ok := any(input).(*ir.CreateDto); ok {
+		inputSrc = inputT
+	} else {
+		inputTemp := any(input).(*ir.UpdateDto)
+		inputSrc = &inputTemp.CreateDto
+	}
+
+	data.Encounter_Id = inputSrc.Encounter_Id
+	data.Unit_Id = inputSrc.Unit_Id
+	data.Doctor_Id = inputSrc.Doctor_Id
+}
diff --git a/internal/use-case/main-use-case/internal-reference/lib.go b/internal/use-case/main-use-case/internal-reference/lib.go
new file mode 100644
index 00000000..2c338f92
--- /dev/null
+++ b/internal/use-case/main-use-case/internal-reference/lib.go
@@ -0,0 +1,70 @@
+package internal_reference
+
+import (
+	"errors"
+	ir "simrs-vx/internal/domain/main-entities/internal-reference"
+	plh "simrs-vx/pkg/lib-helper"
+	pl "simrs-vx/pkg/logger"
+
+	dg "github.com/karincake/apem/db-gorm-pg"
+	gh "github.com/karincake/getuk"
+	"gorm.io/gorm"
+)
+
+func CreateData(input ir.CreateDto, event *pl.Event, dbx ...*gorm.DB) (*ir.InternalReference, error) {
+	pl.SetLogInfo(event, nil, "started", "DBCreate")
+
+	data := ir.InternalReference{}
+	setData(&input, &data)
+
+	var tx *gorm.DB
+	if len(dbx) > 0 {
+		tx = dbx[0]
+	} else {
+		tx = dg.I
+	}
+
+	if err := tx.Create(&data).Error; err != nil {
+		return nil, plh.HandleCreateError(input, event, err)
+	}
+
+	pl.SetLogInfo(event, nil, "complete")
+	return &data, nil
+}
+
+func ReadListData(input ir.ReadListDto, event *pl.Event, dbx ...*gorm.DB) ([]ir.InternalReference, *ir.MetaDto, error) {
+	pl.SetLogInfo(event, input, "started", "DBReadList")
+	data := []ir.InternalReference{}
+	pagination := gh.Pagination{}
+	count := int64(0)
+	meta := ir.MetaDto{}
+
+	var tx *gorm.DB
+	if len(dbx) > 0 {
+		tx = dbx[0]
+	} else {
+		tx = dg.I
+	}
+
+	tx = tx.
+		Model(&ir.InternalReference{}).
+		Scopes(gh.Preload(input.Includes)).
+		Scopes(gh.Filter(input.FilterDto)).
+		Count(&count).
+		Scopes(gh.Paginate(input, &pagination)).
+		Order("\"CreatedAt\" DESC")
+
+	if err := tx.Find(&data).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, &meta, nil
+		}
+		return nil, nil, plh.HandleListError(input, event, err)
+	}
+
+	meta.Count = int(count)
+	meta.PageNumber = pagination.PageNumber
+	meta.PageSize = pagination.PageSize
+
+	pl.SetLogInfo(event, nil, "complete")
+	return data, &meta, nil
+}
diff --git a/internal/use-case/main-use-case/checkout-polies/middleware-runner.go b/internal/use-case/main-use-case/internal-reference/middleware-runner.go
similarity index 85%
rename from internal/use-case/main-use-case/checkout-polies/middleware-runner.go
rename to internal/use-case/main-use-case/internal-reference/middleware-runner.go
index 2da2dcca..f677b66f 100644
--- a/internal/use-case/main-use-case/checkout-polies/middleware-runner.go
+++ b/internal/use-case/main-use-case/internal-reference/middleware-runner.go
@@ -1,7 +1,7 @@
-package checkout_polies
+package internal_reference
 
 import (
-	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	ir "simrs-vx/internal/domain/main-entities/internal-reference"
 	pl "simrs-vx/pkg/logger"
 	pu "simrs-vx/pkg/use-case-helper"
 
@@ -23,7 +23,7 @@ func newMiddlewareRunner(event *pl.Event, tx *gorm.DB) *middlewareRunner {
 }
 
 // ExecuteCreateMiddleware executes create middleware
-func (me *middlewareRunner) RunCreateMiddleware(middlewares []createMw, input *cp.CreateDto, data *cp.CheckoutPolies) error {
+func (me *middlewareRunner) RunCreateMiddleware(middlewares []createMw, input *ir.CreateDto, data *ir.InternalReference) error {
 	for _, middleware := range middlewares {
 		logData := pu.GetLogData(input, data)
 
@@ -38,7 +38,7 @@ func (me *middlewareRunner) RunCreateMiddleware(middlewares []createMw, input *c
 	return nil
 }
 
-func (me *middlewareRunner) RunReadListMiddleware(middlewares []readListMw, input *cp.ReadListDto, data *cp.CheckoutPolies) error {
+func (me *middlewareRunner) RunReadListMiddleware(middlewares []readListMw, input *ir.ReadListDto, data *ir.InternalReference) error {
 	for _, middleware := range middlewares {
 		logData := pu.GetLogData(input, data)
 
@@ -53,7 +53,7 @@ func (me *middlewareRunner) RunReadListMiddleware(middlewares []readListMw, inpu
 	return nil
 }
 
-func (me *middlewareRunner) RunReadDetailMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+func (me *middlewareRunner) RunReadDetailMiddleware(middlewares []readDetailMw, input *ir.ReadDetailDto, data *ir.InternalReference) error {
 	for _, middleware := range middlewares {
 		logData := pu.GetLogData(input, data)
 
@@ -68,7 +68,7 @@ func (me *middlewareRunner) RunReadDetailMiddleware(middlewares []readDetailMw,
 	return nil
 }
 
-func (me *middlewareRunner) RunUpdateMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+func (me *middlewareRunner) RunUpdateMiddleware(middlewares []readDetailMw, input *ir.ReadDetailDto, data *ir.InternalReference) error {
 	for _, middleware := range middlewares {
 		logData := pu.GetLogData(input, data)
 
@@ -83,7 +83,7 @@ func (me *middlewareRunner) RunUpdateMiddleware(middlewares []readDetailMw, inpu
 	return nil
 }
 
-func (me *middlewareRunner) RunDeleteMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+func (me *middlewareRunner) RunDeleteMiddleware(middlewares []readDetailMw, input *ir.ReadDetailDto, data *ir.InternalReference) error {
 	for _, middleware := range middlewares {
 		logData := pu.GetLogData(input, data)
 
diff --git a/internal/use-case/main-use-case/checkout-polies/middleware.go b/internal/use-case/main-use-case/internal-reference/middleware.go
similarity index 88%
rename from internal/use-case/main-use-case/checkout-polies/middleware.go
rename to internal/use-case/main-use-case/internal-reference/middleware.go
index ebd4cff8..2afd1eaf 100644
--- a/internal/use-case/main-use-case/checkout-polies/middleware.go
+++ b/internal/use-case/main-use-case/internal-reference/middleware.go
@@ -1,4 +1,4 @@
-package checkout_polies
+package internal_reference
 
 // example of middleware
 // func init() {
diff --git a/internal/use-case/main-use-case/checkout-polies/tycovar.go b/internal/use-case/main-use-case/internal-reference/tycovar.go
similarity index 73%
rename from internal/use-case/main-use-case/checkout-polies/tycovar.go
rename to internal/use-case/main-use-case/internal-reference/tycovar.go
index a6978f08..10efa497 100644
--- a/internal/use-case/main-use-case/checkout-polies/tycovar.go
+++ b/internal/use-case/main-use-case/internal-reference/tycovar.go
@@ -6,27 +6,27 @@ In this sample it also provides type and variable regarding the needs of the
 middleware to separate from main use-case which has the basic CRUD
 functionality. The purpose of this is to make the code more maintainable.
 */
-package checkout_polies
+package internal_reference
 
 import (
 	"gorm.io/gorm"
 
-	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	ir "simrs-vx/internal/domain/main-entities/internal-reference"
 )
 
 type createMw struct {
 	Name string
-	Func func(input *cp.CreateDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+	Func func(input *ir.CreateDto, data *ir.InternalReference, tx *gorm.DB) error
 }
 
 type readListMw struct {
 	Name string
-	Func func(input *cp.ReadListDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+	Func func(input *ir.ReadListDto, data *ir.InternalReference, tx *gorm.DB) error
 }
 
 type readDetailMw struct {
 	Name string
-	Func func(input *cp.ReadDetailDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+	Func func(input *ir.ReadDetailDto, data *ir.InternalReference, tx *gorm.DB) error
 }
 
 type UpdateMw = readDetailMw