Mohammed, Dr. Malek Mostafa, and Zyad Rafa’ a Zair. “The Effect of Oil and Filer Contents on the Porosity of Lead Acid Battery Separators Produced From Polyethylene”. Al-Khwarizmi Engineering Journal 1, no. 1 (December 27, 2017): 101–116. Accessed January 7, 2026. https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/25.