Analysis of an HIV - HCV simultaneous infection model with time delay. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 3, n. 1, p. 1–11, 2021. DOI: 10.46481/jnsps.2021.109. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/109. Acesso em: 7 apr. 2025.