Rovithis, Emmanouel (2012). "A Classification of Audio-Based Games in terms of Sonic Gameplay and the introduction of the Audio-Role-Playing-Game: Kronos". Proceedings of the 7th Audio Mostly Conference: A Conference on Interaction with Sound. Corfu, Greece: ACM New York, NY, USA. pp. 160–164. doi:10.1145/2371456.2371483.
Rovithis, Emmanouel; Floros, Andreas; Mniestris, Andreas; Grigoriou, Nikolas (2014). "Audio games as educational tools: Design principles and examples". 2014 IEEE Games Media Entertainment. Toronto, ON: IEEE. pp. 1–8. doi:10.1109/GEM.2014.7048083. ISBN978-1-4799-7545-7. S2CID28804427.
Rovithis, Emmanouel; Floros, Andreas; Mniestris, Andreas; Grigoriou, Nikolas (2014). "Audio games as educational tools: Design principles and examples". 2014 IEEE Games Media Entertainment. Toronto, ON: IEEE. pp. 1–8. doi:10.1109/GEM.2014.7048083. ISBN978-1-4799-7545-7. S2CID28804427.