1. R. M. Baños, C. Botella, A. Garcia-Palacios, H. Villa, C. Perpiña’ and M. Alcañiz, (2000).
2. Presence and Reality Judgment in Virtual Environments: A Unitary Construct?
3. J. T. Bell, H. S. Fogler, The Investigation and Application of Virtual Reality as an Educational Tool. Proc Am Soc Eng Educ, (1995).
4. D. A. Bowman, R. P. McMahan, Virtual reality: How much immersion is enough? Computer (Long Beach Calif), (2007).
5. C. Chen, S. Toh, and W. Fauzy, The theoretical framework for designing desktop virtual reality-based learning environments. Journal of Interactive Learning Research 15(2), 147–167, (2004).