CBSE भूगोल Class 11 Chapter 5 Bhugol Videos Book – I
खनिज, Chapter 5 खनिज एवं शैल, Bhugol, Samajik Vigyan Class 11, Hindi Medium https://www.youtube.com/watch?v=dhR2dZxX4QI आग्नेय शैल, Chapter 5 खनिज एवं शैल, Bhugol, Samajik Vigyan Class 11, Hindi Medium https://www.youtube.com/watch?v=A8bJ-gQkDNM