Chung, EunKyoung, YoungWoo Sohn, SoRi Park, YooJin Ha, and HyunKook Sohn. “The Effects of Work Flow and Leisure Satisfaction on employees’ Affect: : Focus on Sleep Quality As a Mediator”. Korean Journal of Industrial and Organizational Psychology 25, no. 1 (February 28, 2012): 125-145. Accessed May 28, 2020. https://journal.ksiop.or.kr/index.php/KJIOP/article/view/276.