REDUCTION OF THE TOTAL ACID NUMBER OF SUDANESE HEAVY CRUDE OIL. International Journal of Engineering Sciences & Research Technology, [S. l.], v. 13, n. 11, p. 35–41, 2024. Disponível em: https://www.ijesrt.com/index.php/J-ijesrt/article/view/122.. Acesso em: 21 may. 2025.