Biblio

N. Viet Anh, Hutton, G., and Weitz, A., “The economic returns of sanitation interventions in Vietnam”. Water and Sanitation Program, WSP, Washington, DC, USA, p. 6 p. : 1 box, 5 fig., 2011.

D. D. Mara, Drangert, J. - O., Anh, N. Viet, Tonderski, A., Gulyas, H., and Tonderski, K., “Selection of sustainable sanitation arrangements”, Water policy : official journal of the World Water Council, pp. p. 305-318, 2007.