Abstracts and Reviews : SYMPTOM ONSET AND INVOLUTION OF DELUSIONS by M. FAKHR EL-ISLAM. Social Psychiatry 15 (1980): 157-60

American Psychiatric Association. 1980. Diagnostic and Statistical Manual. 3rd ed. Washington, D.C.

Raman, A.C. and Murphy, H.B.M. 1972. Failure of traditional prognostic indicators in Afro-Asian psychotics: Results of a long-term follow-up study Journal of Nervous and Mental Disorders 154: 238.

Schneider, K. 1971. Clinical Psychopathology. Stuttgart : Thieme.