Sung-Sik Yoo, Jun-Hyeok Seo, Soo-Yong Park, Dong-Hyung Lee. (2023). Development Plan of Private Vocational Competency Development Training Institutes. Journal for ReAttach Therapy and Developmental Diversities, 6(9s(2), 606–617. https://doi.org/10.67145/jrtdd.v6i9s(2).1290