Tarigan, Alda Tertia Agripina. “Analysis of Factors Affecting BPJS Patients in Utilization of Inpatient Services in the City of Pematang Siantar Army Hospital ”. Science Midwifery 11, no. 3 (August 19, 2023): 496–506. Accessed June 10, 2026. https://midwifery.iocspublisher.org/index.php/midwifery/article/view/1320.