Gweryina RI, Madubueze CE, Nwaokolo MA. Mathematical Modelling and Control of COVID-19 Transmission in the Presence of Exposed Immigrants. Commun.Biomath.Sci. [Internet]. 2021Dec.31 [cited 2025Oct.15];4(2):93-105. Available from: https://journals.itb.ac.id/index.php/cbms/article/view/17008