diff --git a/iranian_cities/admin.py b/iranian_cities/admin.py
index fc03e27..8b5b98c 100644
--- a/iranian_cities/admin.py
+++ b/iranian_cities/admin.py
@@ -12,7 +12,10 @@
 
 
 class IranianCitiesAdmin(admin.ModelAdmin):
+    """Custom admin model for Iranian cities with a custom form field for foreign key."""
+
     def formfield_for_foreignkey(self, db_field: ForeignKey, request: HttpRequest, **kwargs: Any) -> Any:
+        """Override the default form field for foreign keys to use ForeignKeyRawIdWidget."""
         db: Optional[str] = kwargs.get('using')
         kwargs['widget'] = widgets.ForeignKeyRawIdWidget(
             db_field.remote_field, self.admin_site, using=db)
@@ -26,6 +29,7 @@ def formfield_for_foreignkey(self, db_field: ForeignKey, request: HttpRequest, *
 
 
 class CountyInline(BaseTabularInline):
+    """Inline admin model for County."""
     model = County
     extra = 1
     raw_id_fields = ['province']
@@ -33,6 +37,7 @@ class CountyInline(BaseTabularInline):
 
 
 class DistrictInline(BaseTabularInline):
+    """Inline admin model for District."""
     model = District
     extra = 1
     raw_id_fields = ['county', 'province']
@@ -40,6 +45,7 @@ class DistrictInline(BaseTabularInline):
 
 
 class CityInline(BaseTabularInline):
+    """Inline admin model for City."""
     model = City
     extra = 1
     raw_id_fields = ['district', 'county', 'province']
@@ -47,6 +53,7 @@ class CityInline(BaseTabularInline):
 
 
 class RuralDistrictInline(BaseTabularInline):
+    """Inline admin model for RuralDistrict."""
     model = RuralDistrict
     extra = 1
     raw_id_fields = ['district', 'county', 'province']
@@ -54,6 +61,7 @@ class RuralDistrictInline(BaseTabularInline):
 
 
 class VillageInline(BaseTabularInline):
+    """Inline admin model for Village."""
     model = Village
     extra = 1
     raw_id_fields = ['rural_district', 'district', 'county', 'province']
@@ -62,12 +70,14 @@ class VillageInline(BaseTabularInline):
 
 @admin.register(Province)
 class ProvinceAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for Province."""
     list_display = ['name', 'code']
     search_fields = ['name', 'code']
 
 
 @admin.register(County)
 class CountyAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for County."""
     list_display = ['name', 'code', 'province']
     list_filter = ['province']
     search_fields = ['name', 'code', 'province__name']
@@ -76,6 +86,7 @@ class CountyAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.M
 
 @admin.register(City)
 class CityAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for City."""
     list_display = [
         'name', 'code', 'city_type',
         'district', 'county', 'province'
@@ -90,6 +101,7 @@ class CityAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.Mod
 
 @admin.register(District)
 class DistrictAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for District."""
     list_display = ['name', 'code', 'county', 'province']
     list_filter = ['province']
     search_fields = ['name', 'code', 'county__name', 'province__name']
@@ -98,6 +110,7 @@ class DistrictAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin
 
 @admin.register(RuralDistrict)
 class RuralDistrictAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for RuralDistrict."""
     list_display = ['name', 'code', 'district', 'county', 'province']
     list_filter = ['province']
     search_fields = ['name', 'code', 'district__name', 'county__name', 'province__name']
@@ -106,6 +119,7 @@ class RuralDistrictAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin,
 
 @admin.register(Village)
 class VillageAdmin(IranianCitiesAdminReadOnlyEnabled, DynamicInlineAdmin, admin.ModelAdmin):
+    """Admin model for Village."""
     list_display = [
         'name', 'code', 'village_type',
         'rural_district', 'district', 'county', 'province'
diff --git a/iranian_cities/mixins/base_inline.py b/iranian_cities/mixins/base_inline.py
index 954b407..f71e715 100644
--- a/iranian_cities/mixins/base_inline.py
+++ b/iranian_cities/mixins/base_inline.py
@@ -2,5 +2,6 @@
 
 
 class BaseTabularInline(admin.TabularInline):
+    """Base class for inline models using a tabular layout."""
     extra = 1
     max_num = 5