AI Dail، A. A. I.، و Blair، G. S. (1982). THE DEVELOPMENT AND FUNCTION OF THE INTERNATIONAL CRIMINAL POLICE ORGANIZATION (ICPO) KNOWN AS INTERPOL AND ITS NATIONAL CENTRAL BUREAUS (NCBs) (رسالة دكتوراه غير منشورة). Claremont Graduate University، كلاريمونت. مسترجع من http://search.mandumah.com/Record/613561
AI Dail، Abd Alla I.، و George S. Blair. "THE DEVELOPMENT AND FUNCTION OF THE INTERNATIONAL CRIMINAL POLICE ORGANIZATION (ICPO) KNOWN AS INTERPOL AND ITS NATIONAL CENTRAL BUREAUS (NCBs)" رسالة دكتوراه. Claremont Graduate University، كلاريمونت، 1982. مسترجع من http://search.mandumah.com/Record/613561