Abd Allah، A. (1994). Multi-evaluation Techniques Administrative job Performance Evaluations and its Application in a University Setting. المجلة العلمية للاقتصاد والتجارة، ع1 ، 101 - 123. مسترجع من http://search.mandumah.com/Record/664184
Abd Allah، Ahmed. "Multi-evaluation Techniques Administrative Job Performance Evaluations and Its Application in a University Setting." المجلة العلمية للاقتصاد والتجارة ع1 (1994): 101 - 123. مسترجع من http://search.mandumah.com/Record/664184