Abou Zeid، P. (2012). Accessing Copyrighted Materials ; A Study on U.S. Canada and Egypts Exceptions and Limitations Provisions within Copyright Laws. مجلة مصر المعاصرة، مج104, ع505 ، 57 - 100. مسترجع من http://search.mandumah.com/Record/663847
Abou Zeid، Perihan. "Accessing Copyrighted Materials ; A Study On U.S. Canada and Egypts Exceptions and Limitations Provisions Within Copyright Laws." مجلة مصر المعاصرة مج104, ع505 (2012): 57 - 100. مسترجع من http://search.mandumah.com/Record/663847