GALADIMA, A. .; ABUBAKAR, M. .; MUHAMMAD, R. .; YUSUF, U. . Heavy Oil Valorization into Lighter Viscous Fuel Using Low-Cost Catalysts. International Journal of Science for Global Sustainability, [S. l.], v. 12, n. 2, p. 69–73, 2026. DOI: 10.57233/ijsgs.v12i2.1088. Disponível em: https://www.fugus-ijsgs.com.ng/index.php/ijsgs/article/view/1088. Acesso em: 25 jul. 2026.