Biodiesel Production from Castor Oil. Al-Khwarizmi Engineering Journal, [S. l.], v. 21, n. 2, p. 1–11, 2025. DOI: 10.22153/kej.2025.03.001. Disponível em: https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/1014. Acesso em: 4 jul. 2025.