1. The contingency model of leadership effectiveness: An evaluation;Ashour;Organizational Behavior and Human Performance,1973
2. An Introduction to Psychological Statistics;Dubois,1965
3. A Theory of Leadership Effectiveness;Fiedler,1967
4. The contingency model: a reply to Ashour;Fiedler;Organizational Behavior and Human Performance,1973
5. The effect of leadership and cultural heterogeneity on group performance: A test of the contingency model;Fiedler;Journal of Experimental Social Psychology,1966