BUTTA, R.; BUTTA, S.; GUPTA, M. K. Understanding the second wave of epidemics using the susceptible-infectious-recovered model. International Journal of Research in Medical Sciences, [S. l.], v. 9, n. 8, p. 2452–2454, 2021. DOI: 10.18203/2320-6012.ijrms20213097. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/9884. Acesso em: 14 oct. 2025.