Al Saif، A. A.، و Shan، W. (2012). Moving Towards A Multilateral Framework on Investment in Light of Perspectives of Developed and Developing Countries: Can it be Achieved (رسالة ماجستير غير منشورة). Oxford Brookes University، أكسفورد. مسترجع من http://search.mandumah.com/Record/610165
Al Saif، Abd Allah، و Wenhua Shan. "Moving Towards A Multilateral Framework On Investment in Light of Perspectives of Developed and Developing Countries: Can It Be Achieved" رسالة ماجستير. Oxford Brookes University، أكسفورد، 2012. مسترجع من http://search.mandumah.com/Record/610165