(2001, January). Level 5 Leadership: The triumph of humility and fierce resolve. Harvard Business Review, pp. 1-12.Leadership. (n.d.). Merriam-Webster.com. Retrieved January 14, 2014, from http://www.merriam-webster.com/dictionary/leadership.Martin, A., & Ernst, C. (2005). Leadership, learning and human resource management: Exploring leadership in times of paradox and complexity. Corporate Governance, 5(3), pp.82-94.MindTools.com. (2014, January 8). Level 5 Leadership: Achieving “greatness” as a leader. Retrieved from MindTools.com: http://www.mindtools.com/pages/article/level-5-leadership.htmPepsiCo. (2013). Direction. Retrieved January 10, 2014, from PepsiCo.com: http://www.pepsico.com/Company/LeadershipThomas, PM (2013, December 5). A learning CEO can empower in difficult times: Indra Nooyi. Retrieved January 8, 2014, from Forbes India: http://forbesindia.com/article/real-issue/a-learning-ceo-can-power-through-tough-times-indra-nooyi/36641/1Useem, M. (2008, November 19). America's Best Leaders: Indra Nooyi, CEO of PepsiCo. Retrieved January 8, 2014, from USNews.com :