Carkhuff, Robert R. and Berenson, Bernard G. (1967). Beyond Counseling and Therapy. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 3, n. 2, 2012. Disponível em: https://jmss.org/index.php/rcc/article/view/60644. Acesso em: 24 oct. 2026.