Henny Juliani, Kadek Cahya Susila Wibawa, Solechan. “COVID-19 Vaccine Policy As an Effort to Achieve National Herd Immunity in Indonesia”. Pakistan Journal of Medical & Health Sciences 16, no. 04 (June 10, 2022): 1000. Accessed June 16, 2025. https://www.pjmhsonline.com/index.php/pjmhs/article/view/1203.