ธีระธนชัยกุล กัลยารัตน์, and ทรงบุญญา ภัทราทิพย์. “Study of Casual Factors Effecting Performance of Instructor at Private Universities in Thailand”. Business Review Journal 7, no. 2 (June 23, 2018): 115–136. Accessed April 25, 2024. https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/130281.