diff --git a/more/free-programming-interactive-tutorials-en.md b/more/free-programming-interactive-tutorials-en.md
index 7c2841ce0..186672b26 100644
--- a/more/free-programming-interactive-tutorials-en.md
+++ b/more/free-programming-interactive-tutorials-en.md
@@ -451,6 +451,7 @@
 
 * [Intro to SQL: Querying and managing data](https://www.khanacademy.org/computing/computer-programming/sql) - Khan Academy
 * [MySQL Tutorial](https://www.w3schools.com/MySQL/) - W3Schools
+* [Select Star SQL](https://selectstarsql.com) - Zi Chong Kao (CC BY-SA)
 * [SQL at Codecademy](https://www.codecademy.com/courses/learn-sql)
 * [SQL Server Tutorial](https://www.tutlane.com/tutorial/sql-server) - tutlane
 * [SQL Teaching](https://www.sqlteaching.com)