Greenleaf, Robert K. Servant Leadership: A Journey into the Nature of Legitimate Power and Greatness. 25th anniversary ed.Mahwah, NJ: Paulist Press, 2002.
108
Rogers, Carl R., and Richard E. Farson. “Active Listening.” In Communicating in Business Today. Edited by Ruth G. Newman, Marie A. Danziger, and Mark Cohen. Lexington, MA: D. C. Health, 1987.