Andargie, G., A. Kassu, F. Moges, Y. Kebede, M. Gedefaw, F. Wale, A. Alem, B. Andualem, and S. Adugna. “Low Prevalence of HIV Infection, and Knowledge, Attitude and Practice on HIV/AIDS Among High School Students in Gondar, Northwest Ethiopia”. The Ethiopian Journal of Health Development, vol. 21, no. 2, Nov. 2016, https://ejhd.org/index.php/ejhd/article/view/548.