Naiyananont, P., and T. Smuthranond. “Relationships Between Ethical Climate, Political Behavior, Ethical Leadership, and Job Satisfaction of Operational Officers in a Wholesale Company, Bangkok Metropolitan Region”. Kasetsart Journal of Social Sciences, vol. 38, no. 3, Oct. 2017, pp. 345-51, https://so04.tci-thaijo.org/index.php/kjss/article/view/242781.