Mahar Mushtaq Ahmad,Malik Ammar Yasir Khakhi. چاک : ایک تجزیاتی مطالعہ: Chalk: An Analytical Study. HS [Internet]. 2024Jul.29 [cited 2025Sep.16];8(3):12-5. Available from: https://www.harf-o-sukhan.com/index.php/Harf-o-sukhan/article/view/1571