Al Shibl، G. A.، و Murphree، E. L. (1990). A Study of the Impact of Using Automated Information Systems on Middle Managers in Large Industrial Organizations (رسالة دكتوراه غير منشورة). George Washington University، واشنطن. مسترجع من http://search.mandumah.com/Record/611409
Al Shibl، Ghassan A.، و Edward Lile Murphree. "A Study of the Impact of Using Automated Information Systems On Middle Managers in Large Industrial Organizations" رسالة دكتوراه. George Washington University، واشنطن، 1990. مسترجع من http://search.mandumah.com/Record/611409