1. Amodia, D. S., Cano, C., & Eliason, M. J. (2005). An integral approach to substance abuse. Journal of Psychoactive Drugs, 37(4), 363–371.
2. Assagioli, R. (1993). Transpersonal development: The dimension beyond psycho-synthesis. San Francisco: Aquarian/Thorsons.
3. Berry, T. (2006). Foreword. In A. J. LaChance (Ed.), Cultural addiction: The greenspirit guide to recovery (pp. vii–xvi). Berkeley: North Atlantic Books.
4. Birren, J. E. (2004). Aging and biography: Explorations in adult development. Springer.
5. Bollas, C. (2009). The evocative object world. New York: Routledge.