ปัญญารัตนะศ., & ระโหฐานจ. (2019). Motivation Factors Affecting Work Efficiency of Thai Employees in the Automotive Plastic Parts Industry, WHA Eastern Seaboard 1 Industrial Estate Rayong Province. Journal of Graduate Research, 10(1), 189-203. Retrieved from https://so02.tci-thaijo.org/index.php/banditvijai/article/view/176817