Knight, C. (2014). Humanistic-existential and solution-focused approaches to psychotherapy. W Psychotherapy for the advanced practice psychiatric nurse: A how-to guide for evidence-based practice, 2nd ed. (ss. 369-406, ). New York, US: Springer Publishing Co.
 Widok
Strümpfel, U. (2004). Research on gestalt therapy. International Gestalt Journal, 27, 9-54, .
 Widok