Nadhim A. Abdullah, Mohammed A. Jaber, and Hamed A. Hamdi. “The Investigation of the Effect of Polypropylene Waste on the Compressive Strength of Iraqi Portland Cement (UM-Qasir)”. Eurasian Journal of Physics,Chemistry and Mathematics 18 (May 25, 2023): 59–64. Accessed January 10, 2025. https://geniusjournals.org/index.php/ejpcm/article/view/4274.