Muhammad Rauf Khan. “Factors Affecting Customer Retention in Discount Stores: A Case of Utility Stores Corporation of Pakistan”. Pollster Journal of Academic Research 1, no. 2 (December 31, 2014): 144–158. Accessed June 8, 2025. https://pollsterpub.org/OJS_PJAR/index.php/PJAR/article/view/13.