Rosley, Rozainita, et al. “Synthesis and Characterization of Hydroxyapatite Using Precursor Extracted From Seashell Waste”. Multidisciplinary Applied Research and Innovation, vol. 5, no. 1, Jan. 2024, pp. 44-50, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/13822.