diff --git a/app/Http/Controllers/API/TopicFilter.php b/app/Http/Controllers/API/TopicFilter.php
index cd42477..8311e80 100644
--- a/app/Http/Controllers/API/TopicFilter.php
+++ b/app/Http/Controllers/API/TopicFilter.php
@@ -21,12 +21,9 @@ class TopicFilter extends Controller
             "per_page" => "nullable|numeric"
         ]);
 
-        $keys = explode(',', $request->get('keys'));
+        $topics = explode(',', $request->get('keys'));
 
-        return Article::with('source')->whereHas('topics', function ($q) use ($keys) {
-            $q->whereIn('slug', $keys);
-        })
-            ->latest('published_date')
-            ->paginate($request->get('per_page')?:8);
+        return Article::FilterArticleByTopics($topics)
+                        ->paginate($request->get('per_page')?:8);
     }
 }