Firzah N, Gurning FP, Susilawati S. Determinants of the Utilization of the Medan Berkah Health Insurance Program (JKMB). IJGHR [Internet]. 22May2024 [cited 27Dec.2025];6(3):1687-98. Available from: http://jurnal.globalhealthsciencegroup.com/index.php/IJGHR/article/view/3380