Abera, Bayeh, Wondemagen Mulu, Endalew Yizengaw, Tadess Hailu, and Mulugeta Kibret. 2018. “Water Safety, Sanitation and Hygiene Related Knowledge, Attitudes and Practices Among Household Residents in Peri-Urban Areas in Northwest Ethiopia”. The Ethiopian Journal of Health Development 32 (3). https://ejhd.org/index.php/ejhd/article/view/1804.