Update draft-20240915.md

post/draft-20240915.md

@@ -83,3 +83,17 @@ This is a short note which explains how Ligero works in the framework of "succin
 
 ### What is algebraic geometry?
 - <https://www.youtube.com/watch?v=UAPIGin-R54>
+
+### Course: Abstract Algebra
+- <https://youtube.com/playlist?list=PLelIK3uylPMGzHBuR3hLMHrYfMqWWsmx5&si=bmLG3Zb0EL18r7N8>
+
+### Course: Visual Group Theory
+This course contains over 40 videos from undergraduate Abstract Algebra course (Math 4120) at Clemson University.
+- <https://youtube.com/playlist?list=PLwV-9DG53NDxU337smpTwm6sef4x-SCLv&si=no-6Y1x8mHXb7tZB>
+
+### Course: Abstract Algebra I: Group Theory
+- <https://youtube.com/playlist?list=PLL0ATV5XYF8AQZuEYPnVwpiFy0jEipqN-&si=1eYLoxMzvneD5Xyn>
+
+### Course: Exploring Abstract Algebra II
+- <https://youtube.com/playlist?list=PLL0ATV5XYF8DTGAPKRPtYa4E8rOLcw88y&si=6TklSwuwseBDO6Kq>
+-