P. JOSHI, Hemali. Ecofuel from Waste Engine Oil. International Journal of Recent Advances in Multidisciplinary Topics, [S. l.], v. 2, n. 6, p. 200–201, 2021. Disponível em: https://journals.ijramt.com/index.php/ijramt/article/view/905.. Acesso em: 8 apr. 2025.