Al Harthi، H. M.، و Harrald، J. R. (1994). A Comparative Study on the Effectiveness of Group Decision Support Systems in the Disaster Management Doma (رسالة دكتوراه غير منشورة). George Washington University، واشنطن. مسترجع من http://search.mandumah.com/Record/611417
Al Harthi، Hana Mohammed، و John Richard Harrald. "A Comparative Study On the Effectiveness of Group Decision Support Systems in the Disaster Management Doma" رسالة دكتوراه. George Washington University، واشنطن، 1994. مسترجع من http://search.mandumah.com/Record/611417