Ruethaitham, A., and R. Sangboonnak. “Factors Affecting Organization Engagement of The Summit Laemchabang Auto Body Work Co.,Ltd. Employees”. Rajapark Journal, vol. 14, no. 32, Feb. 2020, pp. 168-80, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/222211.