Nyahongo, J. W., U. Richard, and D. G. Mpanduji. “Microbe Penetration Levels on Facial Masks Fabricated at the University of Dodoma Versus the Surgical Ones”. Tanzania Journal of Health Research, vol. 23, no. 2, Aug. 2022, pp. 1-10, doi:10.4314/thrb.v23i2.6.