A tuberculosis model with three infected classes. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 6, n. 1, p. 1881, 2024. DOI: 10.46481/jnsps.2024.1881. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/1881.. Acesso em: 18 may. 2024.