HUSSAIN, S. .; SHEIKH, N. .; ANJUM, M. .; RAZA, A. G. .; RIZVI, R. . Mathematical modelling of COVID-19 pandemic in Pakistan with optimal control. Journal of Asian Scientific Research, [S. l.], v. 13, n. 1, p. 28–44, 2023. DOI: 10.55493/5003.v13i1.4721. Disponível em: https://archive.aessweb.com/index.php/5003/article/view/4721. Acesso em: 25 apr. 2024.