Biblio

T. F. Clasen and Haller, L., “Water quality interventions to prevent diarrhoea: cost and cost-effectiveness”. World Health Organization (WHO), Geneva, Switzerland, p. iii, 33 p. : fig., tab., 2008.

G. Hutton, Haller, L., and Bartram, J., “Economic and health effects of increasing coverage of low cost household drinking-water supply and sanitation interventions to countries off-track to meet MDG target 10 : background document to the "Human Development Report 2006"”. World Health Organization (WHO), Geneva, Switzerland, p. xiii, 53 p. : 16 fig., 26 tab., 2007.