Nacy, Nabeel G., و Samaher T. Ibrahim. 2019. "Using Queuing Theory to Solve the Problem of Momentum to Issuing the Driving Licenses in Dohuk City". المجلة الأكاديمية لجامعة نوروز 8 (4):136-43. https://doi.org/10.25007/ajnu.v8n4a453.