References Badshah, S. (2012). Historical study of leadership theories. Journal of Strategic Human Resource Management, 1(1), 49. Doi number or link needed. Bass, B. M., & Riggio, R. E. (2006). Transformational leadership. City/state: Psychology Press. Bennis, W. (1959). Leadership theory and administrative behaviour: The problems of authority. Administrative Science Quarterly , 4, 259-301. Doi number or link needed. Chaudhry, A. Q., & Javed, H. (2012). Impact of transactional and laissez faire leadership style on motivation. International journal of business and social science, 3(7). Doi number or link needed. Clarke, S. (2013). Safety leadership: A meta‐analytic review of transformational and transactional leadership styles as antecedents of safety behaviours. Journal of Occupational and Organizational Psychology, 86(1), 22-49. Doi number or link needed. Goleman, D. (2000). Leadership that gets results. Harvard business review, 78(2), 4-17. Doi number or link needed. Irgens, O. M. (1995). Situational leadership: A modification Hersey and Blanchard. Leadership & Organization Development Journal, 16(2), 36. Doi number or link needed. Landis, E. A., Hill, D., & Harvey, M. R. (2014). A synthesis of leadership theories and styles. Journal of Management Policy and Practice, 15(2), 97. Doi number or link needed. Luo, H., & Liu, S. (2014). Effect of situational leadership and employee readiness match on organizational citizenship behavior in China. Social behavior and personality: An international journal, 42(10), 1725 - 1732. Doi number or link needed. McCleskey, J. A. (2014). Situational, transformational, and transactional leadership and leadership development. Journal of business studies quarterly, 5(4), 117. Doi number or link needed. Peterson, S. J., Galvin, B. M., & Lange, D. (2012). CEO servant leadership: Exploring executive characteristics and firm performance. Personnel Psychology, 65(3), 565-596. Doi number or link needed. Sedjaya, S., & Sarros, J. C. (2002). “Servant leadership: its origin, development, and application in organizations,” Journal of Leadership & Organizational Studies, 9 (2), pp. 57–64. Shek, D. T., Chung, P. P., & Leung, H. (2015). How unique is the service leadership model? A comparison with contemporary leadership approaches. International journal on disability and human development, 14(3), 217-231. Doi number or link needed. Smith, M. A. (2011). Are you a transformational leader? Nursing Management, 42(9), 44-50. Doi number or link needed. Uzohue, C., Yaya, J., & Akintayo, O. A. (2016). A review of leadership theories, principles, styles and their relevance to management of health science libraries in Nigeria. Journal of Educational Leadership and Policy, 1(1), 17-26. Doi number or link needed. Yukl, G., Gordon, A., & Taber, T. (2002). A hierarchical taxonomy of leadership behavior: Integrating a half century of behavior research. Journal of leadership & organizational studies, 9 (1), 15-32. Doi number .

1. References
Badshah, S. (2012). Historical study of leadership theories.
Journal of Strategic Human
Resource Management, 1(1), 49. Doi number or link
needed.
Bass, B. M., & Riggio, R. E. (2006). Transformational
leadership. City/state: Psychology Press.
Bennis, W. (1959). Leadership theory and administrative
behaviour: The problems of
authority. Administrative Science Quarterly , 4, 259-301.
Doi number or link needed.
Chaudhry, A. Q., & Javed, H. (2012). Impact of transactional
and laissez faire leadership style on
motivation. International journal of business and social
science, 3(7). Doi number or link needed.
Clarke, S. (2013). Safety leadership: A meta‐analytic review of
transformational and transactional leadership styles as
antecedents of safety behaviours. Journal of Occupational and
Organizational Psychology, 86(1), 22-49. Doi number or link
needed.
Goleman, D. (2000). Leadership that gets results. Harvard
business review, 78(2), 4-17. Doi number or link needed.
Irgens, O. M. (1995). Situational leadership: A modification
Hersey and Blanchard. Leadership & Organization Development
Journal, 16(2), 36. Doi number or link needed.
Landis, E. A., Hill, D., & Harvey, M. R. (2014). A synthesis of
leadership theories and styles. Journal of Management Policy
and Practice, 15(2), 97. Doi number or link needed.
Luo, H., & Liu, S. (2014). Effect of situational leadership and
employee readiness match on organizational citizenship
behavior in China. Social behavior and personality: An
international journal, 42(10), 1725 - 1732. Doi number or link
needed.
McCleskey, J. A. (2014). Situational, transformational, and

2. transactional leadership and
leadership development. Journal of business studies
quarterly, 5(4), 117. Doi number or link needed.
Peterson, S. J., Galvin, B. M., & Lange, D. (2012). CEO servant
leadership: Exploring executive characteristics and firm
performance. Personnel Psychology, 65(3), 565-596. Doi
number or link needed.
Sedjaya, S., & Sarros, J. C. (2002). “Servant leadership: its
origin, development, and application in organizations,” Journal
of Leadership & Organizational Studies, 9 (2), pp. 57–64.
Shek, D. T., Chung, P. P., & Leung, H. (2015). How unique is
the service leadership model? A comparison with contemporary
leadership approaches. International journal on disability and
human development, 14(3), 217-231. Doi number or link
needed.
Smith, M. A. (2011). Are you a transformational
leader? Nursing Management, 42(9), 44-50. Doi number or link
needed.
Uzohue, C., Yaya, J., & Akintayo, O. A. (2016). A review of
leadership theories, principles, styles and their relevance to
management of health science libraries in Nigeria. Journal of
Educational Leadership and Policy, 1(1), 17-26. Doi number or
link needed.
Yukl, G., Gordon, A., & Taber, T. (2002). A hierarchical
taxonomy of leadership behavior: Integrating a half century of
behavior research. Journal of leadership & organizational
studies, 9 (1), 15-32. Doi number or link needed.