Blake, R. R. & Mouton, J.S. (1964). The Management Grid. Houston, Texas: Gulf Publishing Company.
2.
Blanchard, K. H. (1967). The favorable of the group situation in a board of trustees to its principal designated leaders-the college president and the board chairman. Unpublished doctoral dissertation, Cornell University.
3.
Fiedler, F. E. (1967). A Theory of Leadership Effectiveness. New York: McGraw-Hill.
4.
Gibson, J. L., Ivancevich, J. M., & Donnelly, J.H., Jr. (1979). Organization, Behavior, Structure, Processes. Dallas, Texas: Business Publications, Inc.
5.
Hall, R. A. (1983). Presidential leadership styles relevant to the group situations in community college boards of trustees and administrative cabinets. Unpublished doctoral dissertation, University of Michigan.
6.
Hersey, P. & Blanchard, K. H. (1977). Management of Organizational Behavior3rd Edition. Englewood Cliffs, N. J.: Prentice-Hall, Inc.
7.
Stodgill, R. M. & Coons, A. E. (1957). Leader Behavior: Its Description and Measurement. Columbus, Ohio: The Ohio State University.