1. Alberti, R. E. & Emmons, M. L. Yourperfect right: A guide to assertive behavior(2nd ed.) San Luis Obispo: Impact, 1974.
2. Bakker, C. B. & Bakker-Rabdau, M. K. No trespassing!Explorations in human territorialify. San Francisco: Chandler & Sharp Publishers, Inc., 1973. (Paperback ed. 1976).
3. Bandura, A. Principles of behavior modification. New York: Holt, Rinehart & Winston, 1969.
4. Buss, A. H. The psychology of aggression. New York: Wiley, 1971.
5. The college self-expression scale: A measure of assertiveness