TRAKARNPRUK, W. Biodiesel Production from Palm Fatty Acids Distillate Using Tungstophosphoric Acid- and Cs-salt Immobilized-Silica. Walailak Journal of Science and Technology (WJST), [S. l.], v. 9, n. 1, p. 37–47, 2012. Disponível em: https://wjst.wu.ac.th/index.php/wjst/article/view/219. Acesso em: 29 apr. 2024.