Parinya Phungamphon. 2005. PV grid connected system sizing software programming. Field of Study Renewable Energy, Naresuan University;
Parinya Phungamphon. (2005) PV grid connected system sizing software programming . Naresuan University/Phitsanulok.
Parinya Phungamphon. PV grid connected system sizing software programming. . Phitsanulok:Naresuan University, 2005.
Parinya Phungamphon. (2005) PV grid connected system sizing software programming . Naresuan University/Phitsanulok.