1. Abadinsky, H. (2009). Organized crime (9th ed.). Belmont: Wadsworth/Cengage Learning.
2. American Psychiatric Association (1994) Diagnostic and statistical manual of mental disorders, 4th edn, Rev. Washington, DC.
3. Champion, D. (2004). The American dictionary of criminal justice: Key terms and major court cases (3rd ed.). New York: Oxford University Press.
4. Gamblers Anonymous. (1984). Sharing recovery through Gamblers Anonymous. CA: Gamblers Anonymous Publishing.
5. Gottfredson, M., & Hirschi, T. (1990). A general theory of crime. Palo Alto, CA: Stanford University Press.