Questions & Answers on Sponsorship (PDF), su P-15 Questions & Answers on Sponsorship, Alcoholics Anonymous World Services, Inc. URL consultato il 26 settembre 2016.
Bill W., Our A.A. Experience Has Taught Us That:, in The A.A. Grapevine, vol. 2, n. 11, Alcoholics Anonymous, April 1946, ISSN 0362-2584 (WC · ACNP), OCLC50379271.
F. Alexander e Rollins, M., Alcoholics Anonymous: the unseen cult, in California Sociologist, vol. 17, n. 1, Los Angeles, California State University, 1985, pp. 33–48, ISSN 0162-8712 (WC · ACNP), OCLC4025459.
NYCMA: What is a Sponsor?, su nycma.org, New York Crystal Meth Anonymous Intergroup. URL consultato l'8 ottobre 2007 (archiviato dall'url originale il 3 marzo 2016).
Narcotics Anonymous, Chapter 8: We Do Recover, in Narcotics Anonymous, 4th, Van Nuys, CA, Narcotics Anonymous World Service Office, 1987, ISBN0-912075-02-3, OCLC14377415.
Bill W., Our A.A. Experience Has Taught Us That:, in The A.A. Grapevine, vol. 2, n. 11, Alcoholics Anonymous, April 1946, ISSN 0362-2584 (WC · ACNP), OCLC50379271.
F. Alexander e Rollins, M., Alcoholics Anonymous: the unseen cult, in California Sociologist, vol. 17, n. 1, Los Angeles, California State University, 1985, pp. 33–48, ISSN 0162-8712 (WC · ACNP), OCLC4025459.