Gweryina, Reuben Iortyer, Chinwendu Emilian Madubueze, and Peter Arome Sani. “Mathematical Model of an SIR Epidemic Switching With Zero Co-Infectives”. International Journal of Mathematical Research 9, no. 1 (August 18, 2020): 42–61. Accessed December 22, 2024. https://archive.conscientiabeam.com/index.php/24/article/view/2211.