1. Belsley, D. A., Kuh, E., and Welsch, R. E. (1980).Regression Diagnostics: Identifying Influential Data and Sources of Collinearity. New York: Wiley.
2. Bishop, J. (1977). The effect of public policies on the demand for higher education.Journal of Human Resources 3: 285?307.
3. Borcherding, T. E., and Deacon, R. T. (1972). The demand for services of nonfederal government.American Economic Review 62: 891?901.
4. Bowen, H. (1980).The Costs of Higher Education. San Francisco: Jossey-Bass.
5. Breneman, D. W., and Nelson, S. C. (1981).Financing Comunity Colleges: An Economic Perspective. Washington, D.C.: The Brookings Institution.