Zimbardo, P. G. (1977). Shyness: What is it, what to do about it. Reading, MA: Addison — Wesley.
Zimbardo, P. G. (1988). Psychology and life (12th ed.). Glenview, IL: Scott, Foresman.
Zimbardo, P. G., Weisenberg, M., Firestone, I., and Levy,B. (1965). Communicator effectiveness in producing public conformity and private attitude change. Journal of Personality, 33, 233–256.
Zuckerman,M., DePaulo, В., Rosenthal, R. (1981). Verbal and nonverbal communication of deception. In L. Berkowitz (Ed.), Advances in experimental social psychology (vol. 14, pp. 1–59). New York: Academic Press.
Zullow, H. M., Oettingen, G., Peterson, C, and Seligman, M. E. P. (1988). Pessimistic explanatory style in the historical record. American Psychologist, 43, 673–682.