1. Aldrich, C. (2009). Virtual worlds, simulations, and games for education: A unifying view. Journal of Online Education, 5, 5.
2. BartleR. A. (2004). Designing virtual worlds. New Riders.
3. BignellS.ParsonV. (2010). Best practice in virtual worlds teaching. Collaboration with funding from the Higher Education Academy Psychology Network and Joint Information Systems Committee. University of Derby, Aston University.
4. Boniello, A. (2009a). Esperienze Didattiche In Ambienti Virtuali 3d. Proceedings of the Conference DULP 2009. Ubiquitous Learning in Liquid Learning Places: Challenging Technologies, Rethinking Pedagogy, Being Design, 87-88.
5. Laboratori di scienze come ambienti di apprendimento 3d.;A.Boniello;Proceedings of the Conference Didamatica 2009,2009