1. Abbott, M. W., & Volberg, R. A. (1999). Gambling and problem gambling in the community: An international overview and critique. Report number one of the New Zealand Gaming Survey. Wellington: Department of Internal Affairs.
2. Abbott, M. W., Volberg, R. A., Bellringer, M., & Reith, G. (2004). A review of research aspects of problem gambling. London: Responsibility in Gambling Trust.
3. APA, American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Washington, DC: American Psychiatric Association.
4. Balodis, S. R. S., Thomas, A. C., & Moore, S. M. (2013). Sensitivity to reward and punishment: Horse race and EGM gamblers compared. Personality and Individual Differences. E-publication ahead of print. doi: 10.1016/j.paid.2013.08.015
5. Binde, P. (2011). What are the more harmful forms of gambling? Analyzing problem gambling prevalence surveys. Göteborg: CEFOS Working Paper 12.