Characteristics of Biofuels Produced Using Soya Oil. Tikrit Journal of Engineering Sciences, [S. l.], v. 32, n. SP1, p. 1–6, 2025. DOI: 10.25130/tjes.sp1.2025.43. Disponível em: https://www.tj-es.com/ojs/index.php/tjes/article/view/2647.. Acesso em: 10 sep. 2026.