1. Adams, E. W. (2013). Fundamentals of game design (3rd ed.). USA.
2. Aguado-Delgado, J., Gutierrez-Martinez, J. M., Hilera, J. R., de-Marcos, L., & Otón, S. (2020). Accessibility in video games: A systematic review. Universal Access in the Information Society, 19, 169–193.
3. Baltzar, P., Hassan, L., & Turunen, M. (2023). Assistive technology in gaming: A survey of gamers with disabilities. In 7th International GamiFIN Conference (pp. 113–118).
4. Barlet, M. C., & Spohn, S. D. (2012). Includification: A practical guide to game accessibility. Charles Town: The Ablegamers Foundation.
5. Batra, R., & Ahtola, O. T. (1991). Measuring the hedonic and utilitarian sources of consumer attitudes. Marketing Letters, 2, 159–170. https://doi.org/10.1007/BF00436035