DEPRESSION AND GUILT: A STUDY AT AN ARAB PSY- CHIA TRIC CENTRE by M. FAKHR EL-ISLAM. Social Psychiatry,4,no. 2 (1969): 56-58

Murphy, H.B.M. ; Wittkower, E.D. ; and Chance, N.A. 1964. Crosscultural inquiry into the symptomatology of depression. A preliminary report. Transcultural Psychiatric Research 1: 5-18.