Niriwa, B. P., M. A. Azongo, and M. K. Asafo. “Prevention of 21st Century Emerging Pandemics, Covid-19: Using Face Masks”. The International Journal of Humanities & Social Studies, vol. 9, no. 3, Mar. 2021, doi:10.24940/theijhss/2021/v9/i3/HS2103-019.