KPANZOU, T. A.; KATCHEKPELE, E.; TCHANDAO, . E. A mathematical reason to wear a face mask during a COVID-19 like pandemic. Malaya Journal of Matematik, India, v. 11, n. 03, p. 286–293, 2023. DOI: 10.26637/mjm1103/005. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/299. Acesso em: 21 nov. 2024.