Rumahorbo, Kevin Nicholas, Siti Syarifah, Dwi Rita Anggraini, Kamal Basri Siregar, Rina Amelia, and Mutiara Indah Sari. 2022. “Factors Influence the Knowledge, Attitudes, and Behavior of Community about COVID-19 Vaccine in Medan City, Indonesia”. Open Access Macedonian Journal of Medical Sciences 10 (E):371-77. https://doi.org/10.3889/oamjms.2022.8434.