1. Going Nomadic: Mobile learning in higher education.;B.Alexander;EDUCAUSE Review,2004
2. Becta. (2004). What the research says about portable ICT devices in teaching and learning. Retrieved from http://www.becta.org.uk/research
3. Belanger, Y. (2005). Duke University iPod first year experience final evaluation report. Retrieved from http://www.ecs.org/html/Document.asp?chouseid=6210
4. Brown, E. (2001). Mobile learning explorations at the Stanford learning lab. Retrieved from http://sll.stanford.edu/projects/