1. Abelson, R. P. (1979). Differences between belief and knowledge systems. Cognitive Science, 3(4), 355–366.
2. Al-Khatib, H. (2011). Technology enhanced learning: Virtual realities; concrete results—case study on the impact of TEL on learning. European Journal of Open, Distance and ELearning, 1. Retrieved October 10, 2015, from http://www.eurodl.org/?p=archives&year=2011&halfyear=1&article=423
3. Al-Senaidi, S., Lin, L., & Poirot, J. (2009). Barriers to adopting technology for teaching and learning in Oman. Computers & Education, 53(3), 575–590.
4. An, Y., & Reigeluth, C. (2011). Creating technology-enhanced, learner-centered classrooms: K-12 teachers’ beliefs, perceptions, barriers, and support needs. Journal of Digital Learning in Teacher Education, 28(2), 54–62.
5. Anderson, R. E., & Becker, H. J. (2001). School investments in instructional technology. Retrieved March 16, 2012, from http://www.crito.uci.edu/tlc/findings/report_8/startpage.htm .