6Burton Clark, The Higher Education System, Berkeley: University of California Press, Ltd. , 1983,p. 143.
7Peter Scott, The meanings of Mass Higher Education, Suffolk: The Society for Researeh into Higher Edueation & Open University Press, 1995, p. 168.
8Martin Trow,"Problems in The Transition from Elite to Mass Higher Education", Policies for Hither Education, OECD General Report of Conference on FPose-Secondary Education, Paris, 26^th-29^th June, 1973,p. 63-71,61.
9US Department of Education, 120 Years of Americ Education: a staistical portrait, National Center fro Education Statistics, January 1993, p. 86-77.
10President's Commssion on Hiher Edueatgion, Higher Education for American P Democracy, New York: Haper Brothers, 1974,Vol. 3. p5.
