Youssef, Hanafy A.; Youssef, Fatma A.; Dening, T. R. (1996). „Evidence for the existence of schizophrenia in medieval Islamic society”. History of Psychiatry. 7 (25): 55—62. doi:10.1177/0957154X9600702503.. , S2CID44459712
Haque, Amber (2004). „Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists”. Journal of Religion and Health. 43 (4): 357—377. doi:10.1007/s10943-004-4302-z.. , S2CID38740431
Youssef, Hanafy A.; Youssef, Fatma A.; Dening, T. R. (1996). „Evidence for the existence of schizophrenia in medieval Islamic society”. History of Psychiatry. 7 (25): 55—62. doi:10.1177/0957154X9600702503.. , S2CID44459712
Haque, Amber (2004). „Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists”. Journal of Religion and Health. 43 (4): 357—377. doi:10.1007/s10943-004-4302-z.. , S2CID38740431