Sohrabi, Babak, Mohammad Haghighi, and Amir Khanlari. “Customer Relationship Management Maturity Model (CRM3): A Model for Stepwise Implementation”. Journal of Human Sciences 7, no. 1 (January 10, 2010): 1–20. Accessed November 22, 2024. https://j-humansciences.com/ojs/index.php/IJHS/article/view/802.