Ahmed، H. M. M. (2010). Socio-Economic and Demographic Determinants Of Demand For Delivery Services in Shurg-Alnil Rural Areas. مجلة دراسات مجتمعية، ع6 ، 188 - 224. مسترجع من http://search.mandumah.com/Record/688672
Ahmed، Huda Mohammed Mukhtar. "Socio-Economic and Demographic Determinants Of Demand For Delivery Services in Shurg-Alnil Rural Areas." مجلة دراسات مجتمعية ع6 (2010): 188 - 224. مسترجع من http://search.mandumah.com/Record/688672