The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Kannika Sanpakdee
Department of Renewable Energy, School of Renewable Energy, Maejo University, Chiang Mai
Thailand

Rotjapun Nirunsin
Department of Renewable Energy, School of Renewable Energy, Maejo University, Chiang Mai
Thailand