Heo, ChangGu, JungYeon Jo, and KangHyun Shin. “The Role of empathy(emotional Contagion, Empathic Concern) in Service Relationship”. Korean Journal of Industrial and Organizational Psychology 26, no. 4 (November 30, 2013): 579–597. Accessed September 17, 2021. https://journal.ksiop.or.kr/index.php/KJIOP/article/view/218.