Park, SeungRib, and Yongwon Suh. “A Preliminary Study for Refinement of Equity Preference Questionnaire: Application of Item Response Theory (IRT)”. Korean Journal of Industrial and Organizational Psychology 29, no. 2 (May 31, 2016): 133–155. Accessed April 24, 2024. https://journal.ksiop.or.kr/index.php/KJIOP/article/view/94.