WIDAYATI, R. . Global Stability of Covid-19 Disease Free Based on Sivrs Model. Jurnal Matematika, Statistika dan Komputasi, [S. l.], v. 19, n. 2, p. 400-411, 2023. DOI: 10.20956/j.v19i2.24386. Disponível em: http://118754.2bdvi7ajx.asia/index.php/jmsk/article/view/24386. Acesso em: 4 dec. 2024.