Nadhim A. Abdullah, Ahmed J. Mohammed, Ziad T. Falik, Ahmad J.H. Almaliky, and Ibrahim K. Ibrahim. “The Influence of Palm Fronds Ash (PA) on Some Physical Properties of Polypropylene (PP)”. Zeta Repository 18 (May 28, 2023): 72–85. Accessed April 7, 2025. https://zetarepo.com/index.php/zr/article/view/1868.