Abd Allah، I. S. (1979). BASIC NEEDS CAN THEIR ANALYSIS LEAD TO A CONSUMPTION THEORY. مجلة مصر المعاصرة، مج70, ع375 ، 5 - 29. مسترجع من http://search.mandumah.com/Record/663933
Abd Allah، Ismail Sabry. "BASIC NEEDS CAN THEIR ANALYSIS LEAD TO A CONSUMPTION THEORY." مجلة مصر المعاصرة مج70, ع375 (1979): 5 - 29. مسترجع من http://search.mandumah.com/Record/663933