diff --git a/src/_includes/post.njk b/src/_includes/post.njk
index 4ffc827..cc6b781 100644
--- a/src/_includes/post.njk
+++ b/src/_includes/post.njk
@@ -44,3 +44,7 @@ layout: "layout.njk"
 <script src="/js/like-button.js"></script>
 <script src="/js/view-counter.js"></script>
 <div id="bottom"></div>
+
+## References: 
+
+1. <https://www.11ty.dev/docs/languages/markdown/>
\ No newline at end of file