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دليل المستخدم
Welss، D. (1986). MANAGIANG A PUBLIC SECTOR IN A MIXED ECONOMY WITHIN THE FRAMEWORK OF INCREASING INTERNATIONAL COOPERATION AND COMPETITION. مجلة مصر المعاصرة، مج77, ع405 ، 155 - 265. مسترجع من http://search.mandumah.com/Record/663699
Welss، Dieter. "MANAGIANG A PUBLIC SECTOR IN A MIXED ECONOMY WITHIN THE FRAMEWORK OF INCREASING INTERNATIONAL COOPERATION AND COMPETITION." مجلة مصر المعاصرة مج77, ع405 (1986): 155 - 265. مسترجع من http://search.mandumah.com/Record/663699