HUSSAIN, Zakir; MEGHAVATHU, Deepa; KUMAR, Rakesh. Effect of Quaternary Ammonium Salt Addition to Conventional Biodiesel Production Process. International Journal of Engineering and Technology, [S. l.], v. 7, n. 4.5, p. 220–223, 2018. DOI: 10.14419/ijet.v7i4.5.20050. Disponível em: https://sciencepubco.com/index.php/IJET/article/view/20050.. Acesso em: 15 apr. 2025.