Samad, Abdul Wahab, and Ahmad Nurdin Hasibuan. “Mencari Formula Program Jaminan Sosial BPJS Kesehatan”. Indonesian Journal of Business Analytics 2, no. 2 (October 31, 2022): 139–158. Accessed May 25, 2026. https://journal.formosapublisher.org/index.php/ijba/article/view/1583.