Suleiman، F. M. A. (2017). Comparison Study between Performance Measures of Queues System without and with Priority with the Application of the National Bank of Egypt - Zagaiz Branch. مجلة البحوث التجارية، مج39, ع3 ، 4 - 16. مسترجع من http://search.mandumah.com/Record/871955
Suleiman، Faten Mohamed Ali. "Comparison Study between Performance Measures of Queues System Without and With Priority With the Application of the National Bank of Egypt - Zagaiz Branch." مجلة البحوث التجارية مج39, ع3 (2017): 4 - 16. مسترجع من http://search.mandumah.com/Record/871955