Indriani, Suriyanti, Ramlawati. OPERATIONAL MANAGEMENT ANALYSIS IN OPTIMIZING CHITOSAN FERTILIZER PRODUCTION BASED ON SWIMMING CRAB SHELL WASTE AT THE CANGKANG SALONA GROUP, LOKTUAN VILLAGE. jiem [Internet]. 2026Jan.28 [cited 2026Jan.31];8(1):927~931. Available from: http://jurnal.stmikiba.ac.id/index.php/jiem/article/view/285