Rakthin, S. ., P. . Punnakitikashem, N. . Pisitsupakarn, and K. . Aksaravut. “Factors Influencing Employee Engagement: Evidence from Thai SMEs”. Kasetsart Journal of Social Sciences, vol. 42, no. 3, July 2021, pp. 482–488, https://so04.tci-thaijo.org/index.php/kjss/article/view/253457.