1. Bachelard, G. (1994). The poetics of space. Beacon Press.
2. Bailenson, J. (2018). Experience on demand: What virtual reality is, how it works, and what it can do. W. W. Norton & Company.
3. Brown, T. (2008). Design thinking. HBR. Retrieved from http://hbr.org/2008/06/design-thinking/ar/1
4. Calongne, C., & Hiles, J. (2007). Blended realities: A virtual tour of education in second life, In Proceedings of the 12th Annual TCC World Conference.
5. Calongne, C. (2008). Educational frontiers: Learning in a virtual world. EDUCAUSE Review, 43(5), 36–48.