1. How and why are some therapists better than others?: understanding therapist effects Washington, DC : American Psychological Association, [2017] COUN300 CP524
2. The European journal of counselling psychology. Trier : European Association of Counselling Psychology, 2013- COUN300
4. Training and education in professional psychology. Washington, D.C. : American Psychological Association, ©2006- CP616 COUN300
5. Counselling and psychotherapy research. Rugby, UK : British Association for Counselling and Psychotherapy, 2001- COUN300 SW526 SW421 COUN110 COUN200 CP602 CP605 CP618 CP616 CP507 CP522
