Dimri, Rajat Praveen. “The Impact of Sales Promotion Schemes on Mobile Phone Services: A Comparative Analysis of Prepaid and Postpaid Mobile Users in Dehradun”. International Journal on Recent and Innovation Trends in Computing and Communication 12, no. 2 (April 25, 2024): 149–156. Accessed December 9, 2024. https://ijritcc.org/index.php/ijritcc/article/view/10497.