11. Group therapy for addictions: an interpersonal relapse prevention approach [Mill Valley, California] : Psychotherapy.net, 2016. COUN380
12. Group therapy: an addictions perspective [Mill Valley, California] : Psychotherapy.net, 2019. COUN380
13. Group dynamics: theory, research, and practice Washington, D.C. : Educational Pub. Foundation, ©1997- SW321