1. Alam, I. (2006): Process of Customer Interaction in New Service Development, in: Edvardsson, B./ Gustafsson, A./ Kristensson, P./ Matthing, J. (Hrsg.). Involving Customers in New Service Development, London, S. 15–31.
2. Algesheimer, R. (2004): Brand Communities. Begriff. Grundmodell und Implikationen, Bamberg.
3. Altman, I./ Taylor, D. A. (1973): Social Penetration. The Development of Interpersonal Relationships, New York.
4. Andreasen, A. R. (1994): Social Marketing: Its Definition and Domain, in: Journal of Public Policy & Marketing, Vol. 13, No. 1, S. 108–114.
5. Andreasen, A. R./ Drumwright, M. (2001): Alliances and ethics in social marketing, in: Andreasen, A. R. (Hrsg.): Ethics in Social Marketing, Washington, S. 95–124.