French, J.R.P., Jr. , and B. Raven, "The Bases of Social Power," in D. Cartwright (ed.), Studies in Social Power, Institute for Social Research, Ann Arbor , 1959.
2.
Neilsen, E.H., "Applying a Group Development Model to Managing a Class,"The Teaching of Organization Behavior, Vol. II, no. 4, 1977.