Avolio, B.J. Full Leadership Development: Building the Vital Forces in Organizations. New York, CA: SAGE, 2009.
Bass, B.M. Leadership and Performance beyond Expectations. . New York: Free Press, 2005.
Bass, B. M. & Avolio, B.J. Improving Organizational Effectiveness through Transformational Leadership. Califonia: CA: SAGE, 2012.
____. Full Range Leadership. Palo Alto: CA: Mind Gardens, 2011.
____. Leaders and Supervision. London: Free Press, 2014.
Boehnke, K., Bontis, N., Distefano, J., & Distefano, A. Transformational Leadership. Palo Alto,: University press, 2013.Burns, J.M. Operational Leadership. New York: Harper and Row Press, 2011.
____. Leadership. New Jessey, Harper & Row press, 2008.
Bush, T. Theories of Educational Management (3rd Ed). London: SAGE Publication, 2003.
Conger, J.A. & Kanungo,R.N. “Towards a Behavioural Theory of Charismatic Leadership in an Organizational settings.” Journal of Academy of Management Review 12(4), 2009 : 467-637.
Fenwick, F.J. & Gayle,C.A. “Missing links in Understanding.” Business & Economics Research Journal Vol 6, 2010: 21-32.
“Missing Link in Understanding the relationship between Leadership and Organizational Performance.” International Business and Economic Research Journal Vol 7, 2009: 12-23.
Fry, L.W. “Towards a Theory of Spiritual Leadership.” The Leadership Quarterly, 14, 2013: 693-727
Glanz, J. Finding your Leadership style. A guide for Educators. London, Great Britain: Clays Ltd, St Ives plc, 2012.
Guzzo, R.A, & Dickson, M.W. “Teams in Organization:Annual Review of Psychology.” Jornal of Management 46(2), 2009: 307-338.
House, R.J. & Aditya, R.N. “The Social Scientific Study of Leadership.” Journal of Management (23)3, 2011: 409-473
Howell, J. & Frost,P. “A Laboratory study of Charismatic Leadership.” Journal of Organizational Behaviour and Human Development Processes Vol 43, 2009: 243-269.
Howel, J.M & Avolio, B.J. “Transactional Leadership, Transactional Leadership,Locus of Control.” Journal of Psychology 78, 2012: 891-902.
Humphreys, J.H. & Einstein, W.O. “Nothing New under the Sun:Transformational Leadership from a Historical Perspective.” Management Decision 41(1/2), 2013: 85-95.
Jeap, S. School leadership effects revisited. Netherlands: Springer publishing press, 2012.
Judge, T.A. & Illies, R. “Relationship of Personality to Performance Motivation.” Journal of Applied Psychology 87(4), 2002: 797-807.
Judge, T.A. & Piccolo, R.F. “Transformational and Transactional Leadership: A Meta-analytic Test of their Relative Validity.” Journal of Applied Psychology 89(5), 2014: 755-768.
Karma, T. Research Methods. New Delhi-India: SAGE Publication, 2009.
Keith, G. Leadership, a very short introduction. . Oxford : Oxford University press, 2000.
Koontz, H. & Donnell, C. Introduction to Management. New York: McGraw-Hill Inc, 2013.
____. Introduction to Management 2. New York: McGraw-Hill Inc, 2014.
Kothari, C.R. Research Methodologies (2nd Ed). New Delhi: New Age International Publishers, 2004.
Kouzes, M.J. & Posner,B.Z. Leadership the Challenged (3rd ed). San-Francisco – USA: Jossey- Bass Publication, A Wiley Imprit, 2012.
Lado, Boyd and Wright,. Leadership and Office. London: Adventure Inc press, 2012.
Lee, A. & Chuang, F. The impact of leadership styles on jobs. 2009. email@example.com (accessed June 12th, 2009).
Max, D. Leadership is an Art. . UK: Dell Publishing, 2009.
McGrath, G.R. and MacMillan, I.C. Entrepreneurial Mindset. Harvard : Business School press books, 2010.
McShane, M.F. & Von, Glinow. Effects of leadership. San Francisco.: Jossey-Bass Publication, 2010.
Mehra, A. Smith, B. Dixon, A. & Robertson,B. “Distributed Leadership in Teams.” Leadership Quartely Journal (17), 2006: 232-245.
Millar, D.C. Research Design and Social Mesurement. California: SAGE Publication: Newbury Park, 2001.
Ogah, J.K. Decision making in Research process. Legon- Accra: Adwina Publication Ltd, 2013.
Podsakoff, .P.M., McKenzie, S.B., & Bommer, W.H. “Transformational Leader Behaviour as Determinant Of Employee Satisfaction.” Journal of Management 22(2), 2012: 260-288.
Purcell, D. C. “Leader Behaviour .” Journal of Management 22(12), 2009: 259-298.
Rowe, D.R. Who is a leader in an Organization. New YORK: Boston Press, 2011.
Saowalux, P. & Peng, C. “Leadership Styles; a study of six Professionals.” International DSL Journal , 2011: 24-34.
Saowalux, P. & Peng, C. Impact of Leadership style on performance. Asia : International DSI/Pacific DSL PRESS, 2010.
Tabachnick, B.G. & Fidell, L.S. Using Multivariate Statistics (5th Ed). Boston: Allyn and Bacon- Alexandria, 2007.
Zhu, H. Visionary Leaders and Time Management. Delhi: CT:JAI. Press, 2016.
Zhu, W. Chew, I.K.H & Spengler, W.D. “Transformational Leadership and Organizational outcomes: The Mediating Role of Human-Capital.” The Leadership Quarterly Journal 16(1), 2015: 39-52.