References
- Christensen , C. 2000 . The innovator's dilemma. New York : Harper Business. .
- Kuhn , T. 1996 . The structure of scientific revolutions, , 3rd edition Chicago : University of Chicago Press. .
- Moore , G. 2000 . Crossing the chasm, , 2nd edition Oxford, , UK : Capstone. .
- The Sloan Consortium . 2005 . Entering the mainstream: The quality and extent of online education in the United States, 2003 and 2004 Needham, MA : Author. . Abstract retrieved February 26, 2006, from http://www.sloan-c.org/publications/books/survey04.asp