1. Attitudes, normative beliefs, and the prediction of behavior: An empirical investigation;Ajzen,1967
2. Theory of games and statistical decisions;Blackwell,1954
3. The relationships between a behavioral intention, attitude toward the behavior and normative beliefs about the behavior;Carlson,1968
4. A multiple-indicator approach to attitude measurement;Cook;Psychological Bulletin,1964
5. Hypotheses and habits in verbal “operant conditioning”;Dulany;Journal of Abnormal and Social Psychology,1961