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

Natanon Yingsamak
Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai
Thailand

Wimalin Laosiritaworn
Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai
Thailand