Roza, Shelvy Haria, and Ayulia Fardila Sari. “Navigating Access to Indonesia’s National Health Insurance: Determinants and Barriers Among Informal Sector Workers in West Sumatra”. BKM Public Health and Community Medicine 41, no. 07 (July 11, 2025): e18765. Accessed July 17, 2025. https://journal.ugm.ac.id/v3/BKM/article/view/18765.