1. Becker, H. S. (1963).Outsiders Free Press, New York.
2. Botto, R. W., and Stern, R. M. (1968). False heart rate feedback: The relationship of choice behavior to true EKG and GSR. Paper read at the Society for Psychophysiological Research, Washington, D.C.
3. Bramel, D. (1963). Selection of a target for defensive projection.J. Abnorm. Soc. Psychol. 66: 318–324.
4. Cochran, W. G., and Cox, W. (1957).Experimental Design 2nd ed., Wiley, New York.
5. Festinger, L. (1957).A Theory of Cognitive Dissonance Row, Peterson, Evanston, Ill.