“The Influence of pH on Cd (II) Adsorption onto NaOH-Treated Oil Palm Empty Fruit Bunch (OPEFB)”, BEAM, vol. 4, no. 1, pp. 7–13, May 2025, Accessed: May 11, 2025. [Online]. Available: https://beam.pmu.edu.my/index.php/beam/article/view/201