Kareem, A. A., D. J. Hawezy, and R. E. Mikha. “Epidemiological Study of Hepatitis B Virus from 2009 to 2019 in Koya City”. Advances in BioScience, vol. 11, no. 4, Nov. 2020, pp. 53-57, https://journals.sospublication.co.in/ab/article/view/281.