Adzlan Abu Hasan, Nadiah Aqilahwati Abdullah, and N. F. Mohd Yusof, “Performance Evaluation of Palm Oil-based Grease for Wear and Vibration Control in Spur Gears”, IJIE, vol. 17, no. 4, pp. 316–330, Nov. 2025, Accessed: Apr. 10, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/22895