Soliman، I.، و Ewaida، U. (1997). Impacts of Technological Changes and Economic Liberalization on Agricultural Labor Employment and Productivity. مجلة مصر المعاصرة، مج88, ع445 ، 47 - 64. مسترجع من http://search.mandumah.com/Record/663785
Soliman، Ibrahim، و Usama Ewaida. "Impacts of Technological Changes and Economic Liberalization On Agricultural Labor Employment and Productivity." مجلة مصر المعاصرة مج88, ع445 (1997): 47 - 64. مسترجع من http://search.mandumah.com/Record/663785