Group Treatment for Substance Abuse Velasquez, M. M., Crouch, C., Stokes-Stephens, N., & DiClementa, C. (2016). Group treatment for substance abuse (2nd ed.). The Guilford Press.
Read Chapters 1, 2, & 3. These three chapters provide a description of the stages of change model and how they are applied to groups for addictive disorders.