Arbain NH, Salimon J. Synthesis And Characterization Of Ester Trimethylolpropane Based Jatropha Curcas Oil As Biolubricant Base Stocks. jst. 2010;2(2). Accessed May 3, 2024. https://penerbit.uthm.edu.my/ojs/index.php/JST/article/view/245