A simulation Model of COVID-19 Epidemic Based on Vaccination and Treatment. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 16, n. 4, p. 2450–2460, 2023. DOI: 10.29020/nybg.ejpam.v16i4.4805. Disponível em: https://ejpam.com/index.php/ejpam/article/view/4805.. Acesso em: 22 jul. 2024.