Jassim, Hamed M. “A Simple Method for Studying Crushability and Grindability of Rocks and Minerals”. Iraqi Journal of Chemical and Petroleum Engineering 5, no. 3 (September 30, 2004): 41–48. Accessed May 17, 2024. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/694.