Wuthipong Suponthana. 2008. Hybrid PV-farmer engine for village grid system. Field of Study Renewable Energy, Naresuan University;
Wuthipong Suponthana. (2008) Hybrid PV-farmer engine for village grid system . Naresuan University/Phitsanulok.
Wuthipong Suponthana. Hybrid PV-farmer engine for village grid system. . Phitsanulok:Naresuan University, 2008.
Wuthipong Suponthana. (2008) Hybrid PV-farmer engine for village grid system . Naresuan University/Phitsanulok.