Nde Fon, P., J.C. N. Assob, M. C. Okeke, H.L. F. Kamga, H. N. Luma, D. Mumah, E. Ngounou, and G. Monekosso. 2013. “Prevalence, Knowledge, Sexual Behaviour, and Risk of Transmission of Hepatitis B Virus Amongst Students of the University of Buea, Cameroon”. Scientific Journal of Microbiology 2 (8):140-49. https://www.sjournals.com/index.php/sjm/article/view/1389.