A Year Into the Pandemic: A Mathematical Model and Study of COVID-19 in India. Indian Journal of Public Health Research & Development, [S. l.], v. 13, n. 1, p. 343–353, 2021. DOI: 10.37506/ijphrd.v13i1.17373. Disponível em: https://mail.medicopublication.com/index.php/ijphrd/article/view/17373. Acesso em: 26 may. 2026.