N. Nasir, “Utilization of Empty Fruit Bunch as Potential Adsorbent for Ammonia Nitrogen Removal in Natural Rubber Wastewater”, IJIE, vol. 10, no. 8, Dec. 2018, Accessed: Mar. 11, 2026. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2452