1. Carnegie Foundation for the Advancement of Teaching. (1987). A cluss~~cation of institutions of higher education (Carnegie Foundation Technical Report).Princeton, NJ: Author.
2. El-Khawas, E. (1989). Campus trends, 1989.Washington, DC: American Council on Education.
3. Hinkle, S. & Schopler, J. (1986). Bias in the evaluation of in-group and out-group performance.In S. Worchel & W. Austin (Eds.), The psychology of intergroup relations (pp. 196-212). Chicago: Nelson-Hall.
4. Leventhal, G. S. (1976). The distribution of rewards and resources in groups and organizations.In L. Bakowitz & E. Walster (Eds.), Advances in experimental social psychology (Vol.9, pp. 91-131). New York: Academic.