1. Causal attribution, perceived benefits, and morbidity after a heart attack: An 8-year study.
2. American Psychiatric Association (APA) (1980). Diagnostic and statistical manual of mental disorders: Third edition (DSM-III). Washington, DC: APA.
3. American Psychiatric Association (APA) (2000). Diagnostic and statistical manual of mental disorders: Fourth edition – text revision (DSM-IV-TR). Washington, DC: APA.
4. Ashley, H. (2005). To what extent can traumatic events be viewed as developmental opportunities? What are the implications of such a position for counselling psychologists working with clients who have experienced trauma? Cited within a portfolio of academic, therapeutic practice and research work submitted to the University of Surrey in partial fulfilment of the degree of Practitioner Doctorate in Psychotherapeutic and Counselling Psychology (pp.6–18).
5. Banyard, P. (1999). Controversies in psychology. Florence, KY: Routledge.