SAGE Journal Articles
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Article 4.1: The Challenging Disaster
Hirokawa, R. Y., Gouran, D. S., and Martz, A. E. (1988). Understanding the Sources of Faulty Group Decision Making: A Lesson from the Challenger Disaster. Small Group Behavior, 19 (4): 411-433.
Article 4.2: Groupthink
Leana, C. R. (1985). A Partial Test of Janis' Groupthink Model: Effects of Group Cohesiveness and Leader Behavior on Defective Decision Making. Journal of Management, 11 (1): 5-17.