ZAI, N. A.; SITI HAZZAH NUR R. IMPLEMENTATION OF THE INDONESIAN ELECTRONIC HAJJ HEALTH CARD (KKJH) SERVICE IN MEDAN CITY. Indonesian Journal of Social Sciences, Policy and Politics, [S. l.], v. 1, n. 2, p. 54–59, 2023. DOI: 10.69745/ijsspp.v1i2.33. Disponível em: https://ijsspp.yayasanwayanmarwanpulungan.com/index.php/IJSSPP/article/view/33. Acesso em: 12 may. 2026.