Ibrahim, Fatima, and Baha’uddeen Salisu. “Microbial Bioremediation of Spent Engine Oil: Current Advances, Challenges, and Future Directions”. UMYU Scientifica 3, no. 4 (December 30, 2024): 260–274. Accessed May 23, 2026. https://publications.umyu.edu.ng/scientifica/index.php/usci/article/view/192.