Production of Methyl Ester (Biodiesel) from Used Cooking Oils via Trans-esterification process. Journal of Engineering, [S. l.], v. 22, n. 5, p. 74–88, 2016. DOI: 10.31026/j.eng.2016.05.06. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/219.. Acesso em: 5 may. 2024.