Abdullah, Hasan Zuhudi, and Norazlinda Albi. “Fabrication and Characterization of Hydroxyapatite Bead for Water Filter Application”. Research Progress in Mechanical and Manufacturing Engineering 4, no. 1 (August 1, 2023): 339–346. Accessed July 18, 2024. https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/9252.