diff --git a/apps/hadis/serializers/serializers_admin.py b/apps/hadis/serializers/serializers_admin.py
index a1b6043..9d81dbe 100644
--- a/apps/hadis/serializers/serializers_admin.py
+++ b/apps/hadis/serializers/serializers_admin.py
@@ -1499,6 +1499,13 @@ class AdminBookReferenceDetailSerializer(serializers.ModelSerializer):
                             cleaned_list.append(item)
                     mutable_data[list_field] = cleaned_list
 
+        if "authors" in mutable_data and ("author" not in mutable_data or mutable_data.get("author") is None):
+            auth_val = mutable_data.get("authors")
+            if isinstance(auth_val, list):
+                mutable_data["author"] = auth_val[0] if len(auth_val) > 0 else None
+            elif auth_val and str(auth_val).isdigit():
+                mutable_data["author"] = int(auth_val)
+
         for int_field in ["number_page", "order", "type", "tag", "author"]:
             if int_field in mutable_data:
                 val = mutable_data.get(int_field)
@@ -1517,6 +1524,17 @@ class AdminBookReferenceDetailSerializer(serializers.ModelSerializer):
 
         return super().to_internal_value(mutable_data)
 
+    def to_representation(self, instance):
+        ret = super().to_representation(instance)
+        if instance.author_id:
+            ret["authors"] = [instance.author_id]
+            if ret.get("author_detail"):
+                ret["authors_detail"] = [ret["author_detail"]]
+        else:
+            ret["authors"] = []
+            ret["authors_detail"] = []
+        return ret
+
     def create(self, validated_data):
         subject_area = validated_data.pop("subject_area", [])
         validated_data.pop("remove_thumbnail", False)