Kareem, A., D. Hawezy, and R. Mikha. “Epidemiological Study of Hepatitis B Virus from 2009 to 2019 in Koya City”. Journal of Advanced Laboratory Research in Biology, Vol. 11, no. 4, Nov. 2020, pp. 53-57, https://e-journal.sospublication.co.in/index.php/jalrb/article/view/339.