1. Global University Rankings and Their Impact;Rauhvargers,2011
2. Centre for Higher Education (CHE)http://www.che.de
3. http://tools.macleans.ca/ranking2013/selectindicators.aspx
4. An Assessment of Research-Doctorate Programs in the United States: Social & Behavioral Sciences;Jones,1982
5. http://www.princetonreview.com/college-rankings.aspx