A Study of Biodiesel Production from Crude Jatropha Oil (CJO) with High Level of Free Fatty Acids. Jurnal Teknologi (Sciences & Engineering), [S. l.], v. 69, n. 3, 2014. DOI: 10.11113/jt.v69.3145. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/3145.. Acesso em: 14 mar. 2025.