Kareem, A. M., Mohammed, Y., and Rogo, L. D. 2017. “Seroprevalence of Hepatitis B Virus Surface Antigen Among Butchers and Slaughtered Cows in Kano Metropolis, Nigeria”. UMYU Journal of Microbiology Research (UJMR) 2 (2):104-9. https://doi.org/10.47430/ujmr.1722.016.