Azis, D., Zakaria, L., Ruby, T. and Arifaldi, M. 2023. THE DEVELOPMENT OF COVID-19 USING OUTBREAK THE SUSCEPTIBLE, INFECTED, AND RECOVERED (SIR) MODEL WITH VACCINATION. BAREKENG: Jurnal Ilmu Matematika dan Terapan. 17, 3 (Sep. 2023), 1325-1340. DOI:https://doi.org/10.30598/barekengvol17iss3pp1325-1340.