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Biblio
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Mathys, A.
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1999
A. Mathys
,
“
El mejoramiento de la eficiencia de costos en los proyectos para la provision de agua en el area rural : hallazgos, conclusiones y recomendaciones de un estudio regional de costos
”
, vol. no. 3. Water and Sanitation Program - Andean Region, Lima, Peru, p. 4 p. : 4 tab., 1999.
A. Mathys
and
Komives, K.
,
“
Improving peri-urban water supply and sanitation services : early lessons from the El Alto Pilot Project
”
, vol. no. 4. Water and Sanitation Program - Andean Region, La Paz, Bolivia, p. 6 p. : 3 photogr., 2 tab., 1999.
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