Kasmanto, Kasmanto, A. Rohendi, and Mira Veranita. “Optimizing Activity-Based Hospitalization Rates and Patient Affordability at XYZ Hospital South Jakarta”. Journal of Economics and Social Sciences (JESS) 4, no. 1 (May 22, 2025): 129–138. Accessed February 9, 2026. https://journal.civiliza.org/index.php/jess/article/view/686.