Changes

*Morgan, P. (2007). Toilets That Make Compost: Low-cost, sanitary toilets that produce valuable compost for crops in an African context. Stockholm Environment Institute, Suecia. (Excelente descripción de cómo hacer anillos de soporte y placas para acuclillarse (pp. 7–35) y pedestales (39–43) usando sólo arena, cemento, hojas de plástico y alambre.) Disponible en: [http://www.ecosanres.org www.ecosanres.org]

*Brandberg, B. (1997).[http://developmentbookshop.com/product_info.php?products_id=299 Latrine Building. A Handbook for Implementation of the Sanplat System]. Intermediate Technology Publications, Londres. pp. 55–77