Md Khaled Hossain. “An Empirical Study of CRM and Analytics-Based Approaches to Customer Engagement and Sales Performance Evaluation in Enterprise Organizations”. American Journal of Data Science and Analytics 2, no. 12 (December 28, 2021): 76–155. Accessed June 25, 2026. https://ajdsa-journal.org/index.php/ajdsa/article/view/21.