PERDANA, I.; LENNY, L.; BENDIYASA, I. M. Regeneration of geothermal-sludge based sodium silicate catalyst for transesterification of palm oil with methanol. Journal of Mechanical Engineering and Sciences, [S. l.], v. 12, n. 4, p. 4030–4043, 2018. DOI: 10.15282/jmes.12.4.2018.04.0350. Disponível em: https://journal.ump.edu.my/jmes/article/view/1082. Acesso em: 19 apr. 2024.