Febryantika, A., Marwan, M., Awalushaumi, L. and Syechah, B. (2023) “MODEL OF TRANSMISSION COVID-19 USING SIQRD MODEL WITH THE EFFECT OF VACCINATION IN MATARAM”, BAREKENG: Jurnal Ilmu Matematika dan Terapan, 17(3), pp. 1265-1276. doi: 10.30598/barekengvol17iss3pp1265-1276.