1. Growing by degrees: Online education in the United States;Allen,2005
2. Blending in: The extent and promise of blended education in the United States;Allen,2007
3. Students' attitudes toward the introduction of a course website;Bonds-Raacke;Journal of Instructional Psychology,2006
4. Student computer skills and attitudes toward Internet-delivered instruction: an assessment of stability over time and place;Brinkerhoff;Journal of Educational Computing Research, 32,2005
5. The inventor's dilemma;Christensen,1997