Quality Assessment of Biodiesels Obtained from Pure Cooking Oils of Some Feedstocks and their Waste Oils. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 18, n. 2, p. 129 – 135, 2018. DOI: 10.21743/pjaec/2017.12.13. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/210. Acesso em: 5 nov. 2025.