AL Sbani, Nadya Hussin, Awatif Meelad, Omar sultan, Alaa Mohammed, Amani Kwadikha, and Saleh Tweib. “Biodiesel Production from Castor Oil”. Al-Khwarizmi Engineering Journal 21, no. 2 (June 1, 2025): 1–11. Accessed January 4, 2026. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/1014.