Panini Ashtadhyayi - https://learnsanskrit.org/static/pdf/vyakarana.pdf

https://ashtadhyayi.com/

To Explore

Ashtadhyayi
Amarakosha
Anoocharanam

Youtube

The Sankrit Chanel - https://www.youtube.com/watch?v=a4rz9NbMq0M