Rangkuti, May Hana Bilqis, Yeti Meliany Lubis, and Simpati Mellyginta Sinuhaji. 2025. “CHALLENGES AND OPPORTUNITIES IN APPLYING ACTIVITY-BASED COSTING FOR HEALTHCARE EFFICIENCY IN HOSPITALS”. Jurnal Keluarga Sehat Sejahtera 23 (1):261-67. https://doi.org/10.24114/jkss.v23i1.68298.