W. Z. Teoh and R. Hamdan, “Feasibility Study of Agriculture By-Product in Removing Heavy Metals in Wastewater through Adsorption ”, rtcebe, vol. 3, no. 1, pp. 1492–1500, Jul. 2022, Accessed: Jul. 30, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/2901