MULI, F. M. M.; BENARD OKELO; RICHARD MAGWANGA; OMOLO ONGATI. Mathematical Analysis of COVID-19 model with Vaccination and Partial Immunity to Reinfection. Journal of Mathematical Analysis and Modeling, [S. l.], v. 4, n. 2, p. 121–145, 2023. DOI: 10.48185/jmam.v4i2.942. Disponível em: https://sabapub.com/index.php/jmam/article/view/942. Acesso em: 21 apr. 2026.