ISMAIL, R. M.; NAGI, F. S. Comparative Evaluation of Metals and Heavy Metals in Some Yemeni Crude and Fuel Oil. Asian Journal of Applied Sciences, [S. l.], v. 8, n. 6, 2020. DOI: 10.24203/ajas.v8i6.6384. Disponível em: https://www.ajouronline.com/index.php/AJAS/article/view/6384. Acesso em: 29 mar. 2024.