diff --git a/src/data/roadmaps/computer-science/content/104-common-algorithms/101-tree-algorithms/100-pre-order-traversal.md b/src/data/roadmaps/computer-science/content/104-common-algorithms/101-tree-algorithms/100-pre-order-traversal.md
index d0fe830d2..d268ce9b4 100644
--- a/src/data/roadmaps/computer-science/content/104-common-algorithms/101-tree-algorithms/100-pre-order-traversal.md
+++ b/src/data/roadmaps/computer-science/content/104-common-algorithms/101-tree-algorithms/100-pre-order-traversal.md
@@ -6,3 +6,4 @@ Visit the following resources to learn more:
 
 - [Tree | Illustrated Data Structures](https://www.youtube.com/watch?v=S2W3SXGPVyU)
 - [Tree Traversals (Inorder, Preorder and Postorder)](https://www.geeksforgeeks.org/tree-traversals-inorder-preorder-and-postorder/)
+- [Pre-order tree traversal in 3 minutes](https://www.youtube.com/watch?v=1WxLM2hwL-U)