Biblio

WASHCost, “The cost of sustaining sanitation services for 20 years can be 5-20 times the cost of building a latrine”, WASHCost global infosheets, vol. 2. IRC, The Hague, p. 6 p.; 2 tab., 2012.

WASHCost, “Providing a basic level of water and sanitation services that last: cost benchmarks”, WASHCost global infosheets, vol. 1. IRC , The Hague, The Netherlands, p. 4 p.; 4 tab., 2012.