Mohammed، S. A. A. H. (2012). Impact of Human Resources management Policies and Practices on the Productivity and efficiency of Sudanese Companies: A Case Study National Electricity Corporation. مجلة جامعة أم درمان الإسلامية، ع 21 ، 277 - 304. مسترجع من http://search.mandumah.com/Record/522468
Mohammed، Salih Alnour Al Haj. "Impact of Human Resources Management Policies and Practices On the Productivity and Efficiency of Sudanese Companies: A Case Study National Electricity Corporation." مجلة جامعة أم درمان الإسلامية ع 21 (2012): 277 - 304. مسترجع من http://search.mandumah.com/Record/522468