diff --git a/_sections/inf3/os.md b/_sections/inf3/os.md
index d6a6bb0..c553c68 100644
--- a/_sections/inf3/os.md
+++ b/_sections/inf3/os.md
@@ -10,6 +10,7 @@ links:
 - Useful short OS tutorial - [here](http://www.tutorialspoint.com/operating_system/index.htm)
 - Cambridge OS course notes - [here](http://www.cl.cam.ac.uk/teaching/1011/OpSystems/os1a-slides.pdf)
 - [Revision Notes by Ben Shaw](https://github.com/benshaaw/revision/tree/master/OS)
+- [Revision Notes by Cem Yilmaz](https://github.com/cem-yilmaz/OS-Revision)
 
 **Buddy system**