Hilal, Achmad, and Rahmat Pannyiwi. “Obstacles And Challenges In Implementing Immunization In Coastal Communities”. International Journal of Health Sciences 4, no. 1 (March 27, 2026): 112–118. Accessed April 16, 2026. https://jurnal.agdosi.com/index.php/IJHS/article/view/1087.