“Penyebaran Penyakit Menular Virus COVID-19 Varian Omicron Di Indonesia Dengan Model Susceptible Vaccinated Infected Recovered (SVIR)”. 2022. Jurnal Ilmiah Keperawatan SHT 17 (2): 110-15. https://doi.org/10.30643/jiksht.v17i2.194.