C.W, Puah, Choo Y.M, Ma A.N, and Chuah C.H. “Production of Carotenoids-Rich Palm Olein by Supercritical Fluid Extraction”. Malaysian Journal of Science 25, no. 2 (August 24, 2006): 147–152. Accessed May 14, 2024. https://mjs.um.edu.my/index.php/MJS/article/view/8151.