Hastuti, Puji, Dian Putri, and Endang Budiati. “Factors Related to Implementation Covid-19 Vaccination in the Elderly”. Journal of Economics and Public Health 1, no. 1 (March 1, 2022): 37-42. Accessed December 25, 2025. http://jurnal.globalhealthsciencegroup.com/index.php/JEPH/article/view/884.