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* Brikke, François y Bredero, Maarten. [http://www.washdoc.info/docsearch/title/117705 Linking technology choice with operation and maintenance in the context of community water supply and sanitation: A reference document for planners and project staff] o ([http://www.who.int/water_sanitation_health/hygiene/om/wsh9241562153/en/ enlace alternativo]). Organización Mundial de la Salud y IRC Centro Internacional de Agua y Saneamiento. Ginebra, Suiza 2003.
* [http://www.bvsde.paho.org/eswww/tecapropiada/otratec/waterlin/tb22.pdf Waterlines: Technical Brief 22] or ([http://www.washdoc.info/docsearch/title/116333 alternative link]).
Translated by Carolina Genson. Masters of Translation. University of New South Wales.