3STEPHEN H SPURR. Academic Degree Structure: Innovative Approaches[M]. New York: McGraw-Hill Book Company, 1970. 10, 64, 118, 141-142, 18, 83-85.
4PHILIP L HARRIMAN. The Bachelor's Degree [J].The Journal of Higher Education, 1936, (7) : 302.
5FREDERICK RUDOLPH. The American College and University: A History [M]. New York: Vintage Books, 1962. 113, 249.
6KEITH ALLAN NOBLE. Changing Doctoral Degrees: An International Perspective [M]. Bristol: The Society for Research into Higher Education & Open University Press, 1994.10.
7BERNARD BERELSON. Graduate Education in the United States [M]. New York: McGraw-Hill Book Company, 1960. 28, 185.
8THOMAS DIENER. Growth of An American Invention: A Documentary History of the Junior and Community College Movement[M]. New York: Greenwood Press, 1986.50.
9KEN KARGES, VERNE THOMPSON, The College Blue Book Degrees Offered by College and Subject 32nd [M]. Detroit: Thomson Gale, 2005. 289-290.
10KEN KARGES, VERNE THOMPSON. The College Blue Book Degrees Offered by College and Subject 34th[M]. Detroit: Thomson Gale, 2007. 285-287.