Lee, C., Shin, K. and Heo, C. 2012. The effect of Transformational Leadership and Transactional Leadership on Work Engagement: The mediating effect of Psychological Capital. Korean Journal of Industrial and Organizational Psychology. 25, 1 (Feb. 2012), 147–169. DOI:https://doi.org/10.24230/kjiop.v25i1.147-169.