1. Bakker, K. (2007). Trickle down? Private sector participation and the pro poor water supply debate in Jakarta, Indonesia. Geoforum, 38(5), 855–868.
2. Bayliss, K., & Tukai, R. (2011). Services and supply chains: The role of the domestic private sector in water service delivery in Tanzania. UNDP. http://www.undp.org/content/dam/undp/library/Poverty%20Reduction/Inclusive%20development/Tanzania-Water.pdf. Accessed 23 Apr 2017.
3. Collignon, B., & Mundial, B. (1999). Potential and the limits of private water providers: Independent sellers in Francophone Africa. Water and sanitation Program Working Paper. World Bank.
4. Collignon, B., & Vezina, M. (2000). Independent water and sanitation providers in African cities: Full report of a ten-country study. World Bank.
5. Corburn, J., et al. (2012). Mathare Zonal plan, Nairobi, Kenya collaborative plan for informal settlement upgrading. Muungano Support Trust Slum Dwellers International (SDI).