Guerch A, Achi A. Measuring the impact of customer expectations On the ‎experience of their relationship in the field of Customer service ‎Subscribers to third-generation (3G++) -Case Study of Mobilis‏ ‏operator’s Customers. DJEI [Internet]. 2016Jan.1 [cited 2024Jul.22];7(1):127-65. Available from: http://journals.lagh-univ.dz/index.php/djei/article/view/280