Zainol Abidin NA. Activated Carbon-Limestone-Alginate Beads for the Simultaneous Removal of Color and Turbidity of Kerian River. ijie [Internet]. 2019 May 6 [cited 2024 Apr. 28];11(2). Available from: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4118