1. Goleman, Boyatzis, McKee (2003). The New Leaders, Transforming the Art of Leadership
2. Goleman, D. (2020). Emotional Intelligence. Bloomsbury
3. Hay Group (2006). Senior Careers Development Service. Supporting guide 0 Inventory of Leadership Styles Diagnostic. www.haygroup.com
4. World Economic Forum (2015). New Vision for Education, unlocking the potential of Technology, pp 1.32.