1. Photovoltaic system;Hille,1995
2. D. P. Hodel, “Photovoltaics-electricity from sunlight,” U.S. Department of Energy Report, DOE/NBMCE.
3. Utility connected photovoltaic systems;Wilk,1992
4. Applied photovoltaic;Wenham,1998
5. A versatile PV array simulation tools;Lawrance,2001