1. The growing concentration of top students at elite schools;Cook,1993
2. Crafting a class;Duffy,1998
3. Tuition rising;Ehrenberg,2000
4. Hebel, S. (2003). To ease budget crunch, public universities seek freedom from state controls. Chronicle of Higher Education, June 20.
5. Does community college attendance provide a strategic path to a higher quality education;Hilmer;Economics of Education Review,1997