1. Photovolatic System Technology, A European Handbook;Imamura,1992
2. Renewable Energy;Boyle,1996
3. A.D. Little, The market for solar photovoltaic (PV) technology, Technical Report TR-102290, Inc, EPRI, Palo Alto 1993.
4. Optimal sizing of stand-alone photovoltaic solar power systems;Gordon;Sol. Cells,1987
5. Photovolatic Enginnering Handbook;Lasnier,1990