A. Q. . Puteh, A. A. . Mohd Shahrome, M. H. . Haji Razali, and A. Sulaiman, “Comparative Study of Carotenoids Content in Ripe and Unripe Oil Palm Fresh Fruit Bunches”, IJIE, vol. 14, no. 9, pp. 240–246, Dec. 2022, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/11933