diff --git a/src/algorithms/string/levenshtein-distance/README.md b/src/algorithms/string/levenshtein-distance/README.md
index 4085c533..0ad2d5cb 100644
--- a/src/algorithms/string/levenshtein-distance/README.md
+++ b/src/algorithms/string/levenshtein-distance/README.md
@@ -43,3 +43,4 @@ three edits:
 ## References
 
 - [Wikipedia](https://en.wikipedia.org/wiki/Levenshtein_distance)
+- [YouTube](https://www.youtube.com/watch?v=We3YDTzNXEk)