RAHMAN, Mohammed Mahmudur; AKTER, Moni; SIDDIK, Abu Bakar; ISLAM, Md Waliul; AFRIN, Sadia; AFROZE, Mirola; KHAN, Mala; HOQUE, Md Azizul; MAMUN, Md Al. Purification of waste engine oil using raw clay, acid treated clay and clay/activated charcoal. Journal of Bangladesh Academy of Sciences, [S. l.], v. 48, n. 1, p. 121–134, 2024. DOI: 10.3329/jbas.v48i1.70241. Disponível em: https://banglajol.info/index.php/JBAS/article/view/70241. Acesso em: 23 oct. 2025.