Independent Water and Sanitation Providers in African Cities: Full Report of a Ten-Country Study. Collignon, Bernard, and Marc Vézina. Water and Sanitation Program. UNDP-World Bank. April 2000. (See Abstract)
Low Cost Urban Sanitation. Duncan Mara. Univ. of Leeds, UK. John Wiley & Sons. 1996. (See Abstract and Table of Contents)
Sanitation Without Water. Winblad, Uno and Wen Kilama. Published with the support of the Swedish International Development Authority. MacMillan, 1985. (See Abstract and Table of Contents)