Haruna Gulumbe, B., Hassan Kawo, A., Bashar Danlami, M. and Bello, M. 2019. Hygiene Practices and Airborne Microbial Concentrations in Restaurants. International Journal of Environment. 8, 2 (Sep. 2019), 18–42. DOI:https://doi.org/10.3126/ije.v8i2.25506.