“E- Service Quality, Ease of Use, Usability and Enjoyment as Antecedents of E-CRM Performance: An Empirical Investigation in Jordan Mobile Phone Services”, The Asian Journal. Technol.Manage, vol. 2, no. 2, Dec. 2009, Accessed: May 07, 2026. [Online]. Available: https://journal.sbm.itb.ac.id/index.php/ajtm/article/view/175