Gaafar، H. A. A. S.، و Azmy، N. O. (2013). Evaluation Of The Undergraduates Tourism Knowledge In The Colleges Of Tourism And Hotels: Its Effect On Their Attitudes Towards Tourism. مجلة اتحاد الجامعات العربية للسياحة والضيافة، مج10, ع1 ، 109 - 122. مسترجع من http://search.mandumah.com/Record/841198
Gaafar، Hebat Allah Ali Sayed، و Noha Osman Azmy. "Evaluation Of The Undergraduates Tourism Knowledge In The Colleges Of Tourism And Hotels: Its Effect On Their Attitudes Towards Tourism." مجلة اتحاد الجامعات العربية للسياحة والضيافة مج10, ع1 (2013): 109 - 122. مسترجع من http://search.mandumah.com/Record/841198