1.
O. O. O, O. Okwonna O, Akuma OA. A Comprehensive Review of Global Waste Lubricating Oil Re-Refining Technologies: Mechanisms, Performance, and Environmental Footprint. etj [Internet]. 2025 Sep. 15 [cited 2026 Sep. 28];10(9):7005-1. Available from: https://everant.org/index.php/etj/article/view/2205