1. Whither the drug specialist? The work-force development needs of drug specialist staff and agencies
2. Bartel, A., Freeman, R., Ichniowski, C. & Kleiner, M. (2004). CEP Discussion Paper 636. Can a Work Organisation Have an Attitude Problem? The Impact of Workplaces on Employee Attitudes and Economic Outcomes. London: Centre for Economic Performance.
3. Consumer Perspectives on Co-Occurring Disorders Treatment
4. "A 28-Day Program Ain't Helping the Crack Smoker"-Perceptions of Effective Drug Abuse Prevention Interventions by North Central Florida African Americans Who Use Cocaine
5. Cameron, J. & Pierce, W. D. (2002).Rewards and intrinsic motivation: Resolving the Controversy, Greenwood EBooks, Retrieved May 15, 2008, from http://ebooks.greenwood.com/browse/ebookdetails.asp?c=EH677.