1. Bales, R.F. (1970). Interaction process analysis. Cambridge, MA: Addison-Wesley.
2. Gibb, J.R. (1961). Defensive communication. Journal of Communication, 11, 141–148.
3. Heslin, R. & Dunphy, D. (1964). Three dimensions of member satisfaction in small groups. Human Relations, 17, 99–112.
4. Leavitt, H.J. (1951). Some effects of certain communication patterns on group performance. Journal of Abnormal and Social Psychology, 46, 38–50.
5. Shaw, M.E. (1971). Group dynamics. New York: McGraw-Hill.