Smits, S and Gil, A., “¿Cuánto cuesta la inversión en agua y saneamiento rural en Honduras? : una comparación de diferentes modelos de intervención”. IRC, The Hague, The Netherlands, p. 4 p. : 2 fig., 1 tab., 2015.

Smits, S and Sutton, S., “Self supply: the case for leveraging greater household investment in water supply”, Briefing note. Building blocks for sustainability series. IRC, The Hague, The Netherlands, p. 8 p.; 1 tab.; 1 fig.; 4 boxes, 2015.