Yeum, Soran, and MyoungSo Kim. “Latent Profile Analysis Ofemotional Labor Strategies in Subordinate Roles: Group Differences in Antecedents and Job Effectiveness”. Korean Journal of Industrial and Organizational Psychology 30, no. 3 (August 31, 2017): 465–489. Accessed August 5, 2021. https://journal.ksiop.or.kr/index.php/KJIOP/article/view/79.