1. Rural Electrification with Renewable Energy;Rolland,2010
2. Energy for Cooking in Development Countrieshttps://www.iea.org/publications/freepublications/publication/cooking.pdf
3. In the design of rural energy centers;Reddy,1979
4. Progress on Drinking Water and Sanitationhttp://www.unicef.org/publications/files/JMP_{}report_{}2014_{}webEng.pdf
5. Two Superpowers We Wish We Hadhttps://www.gatesnotes.com/2016-Annual-Letter