Utilization of Waste From Shells Placuna Placenta For The Production of Hydroxyapatite Using The Precipitation Method. Jurnal Serambi Engineering, [S. l.], v. 11, n. 3, 2026. DOI: 10.32672/jse.v11i3.1757. Disponível em: https://jse.serambimekkah.id/index.php/jse/article/view/1757. Acesso em: 4 nov. 2026.