diff --git a/RMuseum/Services/IGanjoorService.cs b/RMuseum/Services/IGanjoorService.cs
index e336bace..ae135e8a 100644
--- a/RMuseum/Services/IGanjoorService.cs
+++ b/RMuseum/Services/IGanjoorService.cs
@@ -1412,5 +1412,12 @@ namespace RMuseum.Services
         /// <param name="userId"></param>
         /// <returns></returns>
         Task<RServiceResult<bool>> ModerateGanjoorQuotedPoemAsync(GanjoorQuotedPoemModerationViewModel model, Guid userId);
+
+        /// <summary>
+        /// tag with sources
+        /// </summary>
+        /// <param name="catId"></param>
+        /// <param name="sourceUrlSlug"></param>
+        void TagCategoryWithSource(int catId, string sourceUrlSlug);
     }
 }
diff --git a/RMuseum/Services/Implementation/GanjoorService-Partials/GanjoorService-Sources.cs b/RMuseum/Services/Implementation/GanjoorService-Partials/GanjoorService-Sources.cs
index d52bd15c..4b217db5 100644
--- a/RMuseum/Services/Implementation/GanjoorService-Partials/GanjoorService-Sources.cs
+++ b/RMuseum/Services/Implementation/GanjoorService-Partials/GanjoorService-Sources.cs
@@ -15,6 +15,11 @@ namespace RMuseum.Services.Implementation
     /// </summary>
     public partial class GanjoorService : IGanjoorService
     {
+        /// <summary>
+        /// tag with sources
+        /// </summary>
+        /// <param name="catId"></param>
+        /// <param name="sourceUrlSlug"></param>
         public void TagCategoryWithSource(int catId, string sourceUrlSlug)
         {
             _backgroundTaskQueue.QueueBackgroundWorkItem