Purwanti, Eka Desi, and Sudarto Ronoatmojo. “Association Between COVID-19 Vaccination Status With Severity of Confirmed COVID-19 Patients Period of January-July 2022 in Indonesia”. Jurnal Ilmu Kesehatan Masyarakat 14, no. 1 (March 30, 2023): 13–26. Accessed April 23, 2024. https://ejournal.fkm.unsri.ac.id/index.php/jikm/article/view/1067.