1. Africa's Water and Sanitation Infrastructure: Access, Affordability, and Alternatives;Banerjee,2011
2. Fixing Fuel Poverty: Challenges and Solutions;Boardman,2010
3. Affordability of Public Transport in Developing Countries;Carruthers,2005
4. Minimum water requirement for social and economic development;Chenoweth;Desalination,2008
5. A Theory of Human Need;Doyal,1991