Zai, Novita Anis, and Siti Hazzah Nur R. 2023. “IMPLEMENTATION OF THE INDONESIAN ELECTRONIC HAJJ HEALTH CARD (KKJH) SERVICE IN MEDAN CITY”. Indonesian Journal of Social Sciences, Policy and Politics 1 (2):54-59. https://doi.org/10.69745/ijsspp.v1i2.33.