1. American Psychological Association. (1973). Ethical principles in the conduct of research with human participants.Washington, DC: Author.
2. Appelbaum, P. (1984). Informed consent.In D. N. Weisstub (Ed.), Law and mental health: International perspectives (Vol.I, pp. 45-83). New York: Pergamon.
3. Canadian Psychological Association. (1986). A Canadian code of ethics for psychologists.Old Chelsea, Quebec: Author.