Suwimon Theakthum
<li>Program in Production Engineering and Management, Faculty of Agricultural Technology and Industrial Technology, Phetchabun Rajabhat University</li> Thailand
Hathainuch Janchaiyaphoom
<li>Program in Production Engineering and Management, Faculty of Agricultural Technology and Industrial Technology, Phetchabun Rajabhat University</li> Thailand
Thongchai Khrueaphue
<li>Program in Production Technology, Faculty of Agricultural and Industrial Technology, Phetchabun Rajabhat University</li> Thailand