1. An Economic Interpretation of the Private Demand for Education;Blaug;Economica,1966
2. Pitfalls in Financial Model Building;Brainard;Amer. Econ. Review. Proc.,1968
3. Demand for Higher Education in the United States;Campbell;Amer. Econ. Review,1967
4. 4. A. J. Corazzini et al., Higher Education in the Boston Metropolitan Area, Boston 1969.
5. 5. P. Feldman and S. A. Hoenack , “Private Demand for Higher Education in the U. S.,” in U. S. Congress, Joint Economic Committee, The Economics and Financing of Higher Education in the U. S., Compendium of Papers, 91st Cong., 1st sess., Washington 1969, 375-395.