HUSSAINI, N. .; LUBUMA, J.-S. A Non-Standard Finite-difference (NSFD) Scheme for Simultaneous Infection Model. International Journal of Mathematical Analysis and Modelling, [S. l.], v. 1, n. 1, 2023. Disponível em: https://tnsmb.org/journal/index.php/ijmam/article/view/1. Acesso em: 28 jul. 2026.