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

Pirapong Limprasitwong
<p>Department of Teacher Training in Electrical Engineering, Electrical Engineering Education, Faculty of Technical Education,<br />King Mongkut’s University of Technology North Bangkok, Bangkok</p>
Thailand

Chaiyapon Thongchaisuratkrul
<p>Department of Teacher Training in Electrical Engineering, Electrical Engineering Education, Faculty of Technical Education,<br />King Mongkut’s University of Technology North Bangkok, Bangkok</p>
Thailand