Hijazi، B. J.، و Probert، J. (2011). Market and Competitor Analysis Based on Disney Theme Park and the Possibility or Feasibility for Entering the Gulf Countries (رسالة ماجستير غير منشورة). University of Birmingham، برمنغهام. مسترجع من http://search.mandumah.com/Record/687333
Hijazi، Bdriyah Jamil، و Jocelyn Probert. "Market and Competitor Analysis Based On Disney Theme Park and the Possibility or Feasibility for Entering the Gulf Countries" رسالة ماجستير. University of Birmingham، برمنغهام، 2011. مسترجع من http://search.mandumah.com/Record/687333