Kurniawan, Kurniawan, Anggraeni Yunita, and Christianingrum Christianingrum. “Increasing Agricultural Production By Utilizing Crab Shell Waste Into Organic Fertilizer On Seliu Island, Belitung Regency”. Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung 4, no. 2 (August 15, 2018). Accessed May 2, 2024. https://journal.ubb.ac.id/lppm/article/view/177.