1. Age 21 Minimum Legal Drinking Age. (n.d.). Centers for disease control and prevention. Retrieved from https://www.cdc.gov/alcohol/fact-sheets/minimum-legal-drinking-age.htm#:~:text=Minimum%20Legal%20Drinking%20Age%20(MLDA)%20laws%20specify%20the%20legal%20age,varied%20from%20state%20to%20state
2. Alcohol units; Alcohol support. (2018. April 13). National Health Service (NHS). Retrieved from https://www.nhs.uk/live-well/alcohol-support/calculating-alcohol-units/
3. Alcohol Use in the United States. (2021, June). National Institute on Alcohol Abuse and Alcoholism (NIAAA). Retrieved from https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/alcohol-facts-and-statistics
4. American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). American Psychiatric Publishing.
5. AUDIT: the Alcohol Use Disorders Identification Test: Guidelines for use in primary health care (second edition). (2001, November 18). Retrieved from https://www.who.int/publications/i/item/audit-the-alcohol-use-disorders-identification-test-guidelines-for-use-in-primary-health-care