MOHAMED, N. A.; WAN SULAIMAN, W. S. Different Type of Face Masks and Their Protection Against Covid-19. Malaysian Journal of Science Health & Technology, [S. l.], v. 6, n. o, 2021. DOI: 10.33102/mjosht.v6io.125. Disponível em: https://mjosht.usim.edu.my/index.php/mjosht/article/view/125. Acesso em: 17 may. 2024.