Irwan, Muh, Hikmawati Pathuddin, Erniwati Jalil, and Andi Mariani. 2020. “MODEL EPIDEMIK SIR PADA KASUS COVID-19 DI INDONESIA”. Jurnal MSA ( Matematika Dan Statistika Serta Aplikasinya) 8 (2), 83 - 87. https://doi.org/10.24252/msa.v8i2.14613.