Kang, Jiyeon, and Jinkook Tak. “Development and Validity of the Communication Competence Scale of Middle Managers”. Korean Journal of Industrial and Organizational Psychology 32, no. 4 (January 17, 2021): 439–471. Accessed April 20, 2024. https://journal.ksiop.or.kr/index.php/KJIOP/article/view/189.