Khier Aldin، H. (1989). Evaluation of the Structure of Protection and Antil-Export Bias in the 1986 Customs Tariffs In Egypt. مجلة مصر المعاصرة، مج80, ع417,418 ، 73 - 96. مسترجع من http://search.mandumah.com/Record/663734
Khier Aldin، Hanaa. "Evaluation of the Structure of Protection and Antil-Export Bias in the 1986 Customs Tariffs In Egypt." مجلة مصر المعاصرة مج80, ع417,418 (1989): 73 - 96. مسترجع من http://search.mandumah.com/Record/663734