M. F. Azhari and H. Basri, “Physicochemical Properties Analysis of Three Indexes Pineapple Core Extract Variety MD2 and Morris”, EKST, vol. 5, no. 2, pp. 404–410, Dec. 2025, Accessed: Apr. 08, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/18474