diff --git a/guide/english/computer-science/index.md b/guide/english/computer-science/index.md
index 5a80a8554c..6817d69a0e 100644
--- a/guide/english/computer-science/index.md
+++ b/guide/english/computer-science/index.md
@@ -32,6 +32,10 @@ Computer science is categorized into several fields. The following are among the
   - Distributed Systems
   - Operating Systems
   - Database Systems
+- <a href="https://www.studytonight.com/data-structures/introduction-to-data-structures">Algorithms and Data Structures</a>
+  - Primitive Data Structures
+  - Abstract Data Structures
+  - Algorithm: Space Complexity & Time Complexity
 
 ## More Information
 * [Visualization of Data Structures](http://www.cs.usfca.edu/~galles/JavascriptVisual/Algorithms.html)