Stability Analysis of an SIS Epidemic Model in Heterogeneous Environment. CSIAM Transactions on Life Sciences, [S. l.], v. 1, n. 2, p. 280–298, 2025. DOI: 10.4208/csiam-ls.SO-2024-0007. Disponível em: https://global-sci.com/index.php/csiam-ls/article/view/9158. Acesso em: 5 dec. 2025.