Self-supply Working Group (SSWG), Ethiopia. Ministry of Water and Energy, IRC, UNICEF-United Nations Children Fund, World Health Organization, RiPPLE, y COWASH,
«National policy guidelines for Self-supply : guidelines to support contribution of improved Self-supply to universal access». Ministry of Water and Energy, Addis Ababa, Ethiopia, p. 12 p. : 1 tab., 2012.