Ramos, Talita Cuenca Pina Moreira, et al. “Evaluation of Natural Antioxidants Action in Oxidative Stability of Commercial Biodiesel”. Orbital: The Electronic Journal of Chemistry, vol. 10, no. 1, Jan. 2018, pp. 26-30, https://periodicos.ufms.br/index.php/orbital/article/view/16379.