Jha, Bipin, Narbikram Thapa, Khet Raj Dahal, and Michael Yoseph. 2019. “A Review on Sustainability of Community-Led Rural Water Supply and Sanitation Systems With Special Reference to Berik Sub-Zone in Eritrea”. American Scientific Research Journal for Engineering, Technology, and Sciences 59 (1): 27-41. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/4987.