Norzainariah Abu Hassan, Izzat Danial Mahadi, Nur Husna Muslim, et al. Utilizing Calcined Hard Clam Shells for Phosphate Removal Using an Up-flow Column Reactor Through Water Solution. jaita. 2025;6(1):29-43. Accessed August 12, 2026. https://journal.uthm.edu.my/index.php/jaita/article/view/20756