“Fabrication of Calcite Calcium Carbonate from Eggshells Biogenic Waste Through Carbonation Method”. Jurnal Kimia Valensi 11, no. 1 (May 31, 2025): 9–17. Accessed August 10, 2026. https://journal.uinjkt.ac.id/index.php/valensi/article/view/41914.