Olt, C. (2009). Diferentes modelos de servicio para baños mejorados y análisis de los costos asociados para su operación (in Spanish) Different service models for improved toilets and analysis of the costs associated to their operation GTZ, PROAGUA
Urine diversion dehydration toilets (UDDTs) Faeces or faecal sludgeUrinePeri-urbanSpanish
Peru
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