1. Alexander, B. K., Beyerstein, B. L., Hadaway, P. F., & Coambs, R. B. (1981). Effect of early and later colony housing on oral ingestion of morphine in rats. Pharmacology Biochemistry and Behavior, 15(4), 571–576.
2. American Society of Addiction Medicine. (2001). Public policy of ASAM. Retrieved from http://www.asam.org/ppol .
3. Ballinger, B., Matano, R. A., & Amantea, A. C. (2008). EI mediation of addiction: Alcoholism: A perspective on alcoholism: The case of Charles. In K. J. Schneider (Ed.), Existential-integrative psychotherapy: Guideposts to the core of practice (pp. 177–185). New York: Routledge.
4. Batthyany, A., & Guttman, D. (2006). Empirical research on logotherapy and meaning-oriented psychotherapy: An annotated bibliography. Phoenix: Zeig, Tucker & Theisen.
5. Batthyany, A., & Levinson, J. (Eds.). (2009). Existential psychotherapy of meaning: Handbook of logotherapy and existential analysis. Phoenix: Zeig, Tucker & Theisen.