R.L., Kolo, et al. “Prevalence of Hepatitis B and C Virus Among Students of Federal University Gashua, Yobe State, Nigeria”. Journal of Natural Science Research and Review, vol. 1, no. 4, Oct. 2025, pp. 73-77, https://jnsrr.ep-journals.org/index.php/jnsrr/article/view/14.