S. Tonvongval, „Impact of Transformational Leadership Development Through Organization Development Intervention on Employee Engagement and Firm Performance: A Case Study”, srr, vol. 25, pp. 34–49, dec. 2013, Data accesării: nov. 12, 2026. Disponibil la: https://www.researchreports.ro/journal/article/view/274-impact-of-transformational-leadership-development-through