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دليل المستخدم
Al Ghamdi، A. A.، و Copus، C. (2011). An Investigation of Governments’ Tendencies to Impose Trade Barriers as Protectionism for their Domastic Economy: A Case of Trade in Saudi Arabia (رسالة ماجستير غير منشورة). De Montfort University، لستر. مسترجع من http://search.mandumah.com/Record/601618
Al Ghamdi، Ahmed Ali، و Colin Copus. "An Investigation of Governments’ Tendencies to Impose Trade Barriers As Protectionism for Their Domastic Economy: A Case of Trade in Saudi Arabia" رسالة ماجستير. De Montfort University، لستر، 2011. مسترجع من http://search.mandumah.com/Record/601618