Environment and Public Health Organization -Katmandu, NP, ENPHO et UN-HABITAT -Nairobi, KE, United Nations Human Settlements Programme,
« Report on water supply systems improvement activities : Siddhipur integrated water and sanitation programme ». Environment and Public Health Organization (ENPHO), Kathmandu, Nepal, p. 20 p. : 1 fig., 13 photogr., 5 tab., 2007.
S. Valenzuela et Jouravlev, A.,
Servicios urbanos de agua potable y alcantarillado en Chile: factores determinantes del desempeno, vol. no. 123. Santiago, Chile: United Nations Economic Commission for Latin America and the Caribbean (ECLAC), 2007, p. 78 p. : 7 boxes, 15 fig., 4 tab.