diff --git a/Library/Presentation/Model/API/IEventModelOperation.cs b/Library/Presentation/Model/API/IEventModelOperation.cs
index 795c4d8..a90babc 100644
--- a/Library/Presentation/Model/API/IEventModelOperation.cs
+++ b/Library/Presentation/Model/API/IEventModelOperation.cs
@@ -1,5 +1,4 @@
-using Presentation.Model;
-using Service.API;
+using Service.API;
 
 namespace Presentation.Model.API
 {
diff --git a/Library/Presentation/Model/API/IProductModelOperation.cs b/Library/Presentation/Model/API/IProductModelOperation.cs
index 08de3ac..dd539c8 100644
--- a/Library/Presentation/Model/API/IProductModelOperation.cs
+++ b/Library/Presentation/Model/API/IProductModelOperation.cs
@@ -1,5 +1,4 @@
-using Presentation.Model;
-using Service.API;
+using Service.API;
 
 namespace Presentation.Model.API
 {
diff --git a/Library/Presentation/Model/API/IStateModelOperation.cs b/Library/Presentation/Model/API/IStateModelOperation.cs
index cdad8b8..d795633 100644
--- a/Library/Presentation/Model/API/IStateModelOperation.cs
+++ b/Library/Presentation/Model/API/IStateModelOperation.cs
@@ -1,5 +1,4 @@
-using Presentation.Model;
-using Service.API;
+using Service.API;
 
 namespace Presentation.Model.API
 {
diff --git a/Library/Presentation/Model/API/IUserModelOperation.cs b/Library/Presentation/Model/API/IUserModelOperation.cs
index 843e20d..581747c 100644
--- a/Library/Presentation/Model/API/IUserModelOperation.cs
+++ b/Library/Presentation/Model/API/IUserModelOperation.cs
@@ -1,6 +1,4 @@
-using Presentation.Model;
-using Service.API;
-using Service.Implementation;
+using Service.API;
 
 namespace Presentation.Model.API
 {