1. Allen, I. E., Seaman, J., & Garrett, R. (2007). Blending in: The extent and promise of blended education in the United States. Needham, MA: The Sloan Consortium. Retrieved month date, year, from http://www.sloan-c.org/publications/survey/pdf/Blending_In.pdf . Accessed 25 April 2012.
2. Barab, S. A., Bowdish, B. E., & Lawless, K. A. (1997). Hypermedia navigation: Profiles of hypermedia users. Educational Technology Research and Development, 45(3), 23–41.
3. Bliuc, A. M., Ellis, R., Goodyear, P., & Piggott, L. (2010). Learning through face-to-face and online discussions: Associations between students’ conceptions, approaches and academic performance in political science. British Journal of Educational Technology, 41(3), 512–524.
4. del Valle, R. (2006). Online learning: Learner characteristics and their approaches to managing learning. Unpublished doctoral dissertation. Indiana University, Bloomington Indiana.
5. del Valle, R., & Duffy, T. M. (2007). Online learning: Learner characteristics and their approaches to managing learning. Instructional Science, 37(2), 129–149.