1. Foster RE, Cota AD. Afghanistan photovoltaic power applications for rural development,” Area 9.5 Modules and Systems: Off-Grid Systems, 38th IEEE Photovoltaic Specialists Conference, Austin, Texas, June 3-8, 2012.
2. Foster RE, Ghassemi M, Cota AD. Solar energy: Renewable energy and the environment series. A. Ghassemi (Ed.) Volume 2, 1st ed. CRC Press, 2009.
3. Foster RE, Cisneros G, Hanley CJ. Life-cycle cost analysis for photovoltaic water pumping systems in Mexico,” Proceedings of the 2nd World Conference on Photovoltaic Energy Conversion, Volume III, ISBN 92-828-5420, 15th European PV Solar Energy Conference, 27th US IEEE Photovoltaics Specialists Conference, 10th Asia/Pacific PV Science and Engineering Conference, Vienna, Austria, July 6-10, 1998, p. 3021-3025.