Modaimeegh، I. A. A.، و Smith، D. (1981). THE EVOLUTION OF THE LEGAL BASES FOR THE EXPLOITATION OF MIDDLE EAST OIL: FROM THE OLD CONCESSION SYSTEM TO THE MODERN PARTICIPATION AND NATIONALIZATION (رسالة ماجستير غير منشورة). Harvard University، كامبردج. مسترجع من http://search.mandumah.com/Record/614757
Modaimeegh، Ibrahim Abd Alrahman، و David Smith. "THE EVOLUTION OF THE LEGAL BASES FOR THE EXPLOITATION OF MIDDLE EAST OIL: FROM THE OLD CONCESSION SYSTEM TO THE MODERN PARTICIPATION AND NATIONALIZATION" رسالة ماجستير. Harvard University، كامبردج، 1981. مسترجع من http://search.mandumah.com/Record/614757