Yanuar, Vita, Joko Santoso, and Ella Salamah. “Utilization of Crabs Shell (Portunus Pelagicus) As Sources of Calcium and Phosphorus in Making of Crackers Product”. Jurnal Pengolahan Hasil Perikanan Indonesia 12, no. 1 (1). Accessed May 2, 2024. https://journal.ipb.ac.id/index.php/jphpi/article/view/895.