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

Piyapong Sriwongras
Department of Farm Mechanics, Faculty of Agriculture, Kasetsart University, Bangkok
Thailand

Sakda Intaravichai
Department of Farm Mechanics, Faculty of Agriculture, Kasetsart University, Bangkok
Thailand

Thanya Kiatiwat
Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, Bangkok
Thailand