Al Kelabi، S. A. A. H.، و Dansereau، F. (1991). A MULTIPLE LEVEL, LIMITED DOMAINS THEORY OF LEADERSHIP: AN EMPIRICAL INVESTIGATION OF LEADERSHIP IN PROFESSIONAL AND HIERARCHIC DOMAINS (رسالة دكتوراه غير منشورة). State University of New York at Buffalo، بوفالو. مسترجع من http://search.mandumah.com/Record/618393
Al Kelabi، Saad Abd Allah H.، و Fred Dansereau. "A MULTIPLE LEVEL, LIMITED DOMAINS THEORY OF LEADERSHIP: AN EMPIRICAL INVESTIGATION OF LEADERSHIP IN PROFESSIONAL AND HIERARCHIC DOMAINS" رسالة دكتوراه. State University of New York at Buffalo، بوفالو، 1991. مسترجع من http://search.mandumah.com/Record/618393