A. Buker, R., R, M. Z. Hamoodat, and M. “Local Mineral Clays, Characterization and Application in Petroleum Refining”. Journal of Education and Science (JES) 25, no. 2 (June 1, 2012): 10–20. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17844.