สุวิภาต ณัฐพล, and ประกอบผล ธนาวุฒิ. “JOB CHARACTERISTICS AND JOB MOTIVATION OF OPERATIONAL EMPLOYEES IN PYLON PUBLIC COMPANY LIMITED”. Journal of Industrial Education 15, no. 3 (December 30, 2016): 121–129. Accessed May 4, 2024. https://ph01.tci-thaijo.org/index.php/JIE/article/view/122759.