Mathematical Analysis of SIR Epidemic Model with Piecewise Infection Rate and Control Strategies. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 5, n. 3, p. 524–539, 2024. DOI: 10.12150/jnma.2023.524. Disponível em: https://global-sci.com/index.php/jnma/article/view/13699. Acesso em: 6 dec. 2025.