Febryantika A, Marwan M, Awalushaumi L, Syechah B. MODEL OF TRANSMISSION COVID-19 USING SIQRD MODEL WITH THE EFFECT OF VACCINATION IN MATARAM. BAREKENG: J. Math. & App. [Internet]. 30Sep.2023 [cited 23Jul.2024];17(3):1265-76. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/7921