1.
Hamidon MLH, Jumadi R, Khalid A, Jaat N, Salleh H, Samion S. Research On Biodegradable Lubricant in Combustion Engine . japtt. 2023;2(2):42-50. Accessed July 18, 2024. https://publisher.uthm.edu.my/ojs/index.php/japtt/article/view/13280