Sutiningsih, D., N. Idayanti, and M. Hadi. “Anti-SARS-Cov-2 S-RBD IgG Antibodies After COVID-19 Inactivated-Vaccine Administration Among Infected and Uninfected Health Care Workers”. International Journal of Health, Education & Social (IJHES), Vol. 5, no. 12, Jan. 2023, doi:10.1234/ijhes.v5i12.212.