El-Hazek, M. N., T. E. Amer, R. M. Issa, M. G. Abu El-Azm, S. A. Omar, and S. M. El-Hady. “Characterization and Breakdown of South Gabal EL A’urf Polymineralized Ore Material”. Eurasian Chemico-Technological Journal 11, no. 2 (April 20, 2009): 149–158. Accessed November 24, 2024. https://ect-journal.kz/index.php/ectj/article/view/524.