Sulaman, Norsyamimi Che, Nor Azah Yusof, Jaafar Abdullah, and Reza Hajian. “A Novel Base Catalyzed Esterification Reaction for Spectrophotometric Determination of Free Fatty Acid in Crude Palm Oil”. Asian Journal of Chemistry 29, no. 4 (January 31, 2017): 723–727. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/29_4_5.