Tumsa, N., T. Degefu, and Z. Belay. “Assessment of Hepatitis B Virus and Associated Risk Factors Among Pregnant Women Attending Antenatal Care at Arsi University Asella Referral and Teaching Hospital, Ethiopia”. Ethiopian Journal of Sciences and Sustainable Development, Vol. 5, no. 1, Feb. 2019, pp. 81 -01, doi:10.20372/ejssdastu:v5.i1.2018.68.