البياتيا, العيسىم. Over application courier company (DHL) to keep the quality of service to achieve customer satisfaction the adoption of precedence delivery time - A prospective study)). JEAS [Internet]. 1Oct.2013 [cited 30Nov.2019];19(73):211. Available from: http://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1075