1. American Psychological Association. (2002). Ethical principles of psychologists and code of conduct. APA. Retrieved 01.03.12.
2. Video game addiction among young adults in Norway: prevalence and health (unpublished master’s thesis);Arnesen,2010
3. Blizzard Entertainment. (2008). World of Warcraft subscriber base reaches 12 million worldwide. Retrieved 01.03.12.
4. A theoretical model of the behavioural addictions – applied to offending;Brown,1997
5. Gaming, gambling and other addictive play;Brown,1991