4Sarber, Sue. "Cooperative Learning Slavin Style." http:// mason.gmu. edu/smcaUis/ portfolio/papers/ slavin. PDF Heider, F. The Psychology of Interpersonal Relations. New York: Wiley, 1958.
5Jones, E. E. and K. E. Davis “From Acts to Dispositions: The Attribution Process in Person Perception.” Advances in Experimental Social Psychology. 2 (1965).
6Kelley, H. H. "Attribution in social psychology." Symposium on Motivation. 15 (1967).
7Weiner, B. An attributional theory of motivation and emotion. New York: Springer-Vedag, 1986.
8Slavin, R. E. “Cooperative learning and student achievement: Six theoretical perspectives.” Advances in motivation and achievement: Motivation enhancing environments. Eds. M. L. Maehr and C. Ames. New York: JAI Press, 1989.
9Slavin, R. E. “Research on cooperative learning and achievement: What we know, what we need to know.” Contemporaft Educational Psychology. 21.1 (1996).
10Slavin, R. E. Cooperative Learning: Theory, Research and Practice. 2nd ed. Boston: Allyn & Bacon, 1995.
