Facile Chemical Processing of Geloina coaxans Shell and Sodium dihydrogen Phosphate as Precursors to Produce Hydroxyapatite. Valensi [Internet]. 2021 Feb. 17 [cited 2026 Sep. 15];6(2):192-7. Available from: https://journal.uinjkt.ac.id/index.php/valensi/article/view/15768