Abd El Fattah، M. A.، و Saleh، M. A. M. (2017). Assessing the Procedures Followed to Avoid the Risk of Food Allergies in the Food and Beverage Sector within Lodging Establishments: The Case of Red Sea Governorate. المجلة الدولية للتراث والسياحة والضيافة، مج11, ع2 ، 213 - 227. مسترجع من http://search.mandumah.com/Record/979047
Abd El Fattah، Mostafa Attia، و Mohamed Abdel Moneim Saleh. "Assessing the Procedures Followed to Avoid the Risk of Food Allergies in the Food and Beverage Sector Within Lodging Establishments: The Case of Red Sea Governorate." المجلة الدولية للتراث والسياحة والضيافة مج11, ع2 (2017): 213 - 227. مسترجع من http://search.mandumah.com/Record/979047