นันทโกวัฒน์ กวินนาฏ. “A Study of Relationship Between Satisfaction to Management With Efficiency in Working Performances of Employees Turnbull Designs Co.,Ltd. In Amphur Muang NakhonRatchasima Province”. RMUTI JOURNAL Humanities and Social Sciences 3, no. 1 (June 30, 2016): 123–133. Accessed August 19, 2022. https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/193687.