ATOKOLO, W. .; OMALE, D. . Sensitivity analysis of a transmission dynamics model for Typhoid fever and its control . International Journal of Mathematical Analysis and Modelling, [S. l.], v. 1, n. 1, 2023. Disponível em: https://journal.tnsmb.org/index.php/ijmam/article/view/4. Acesso em: 12 сеп. 2026.