K. Shakthi Priya, Dr. V.K.Maragathavalli. “A Study on Mobile Wallet Services Technology in Digital Marketing With Special References to Chennai City”. International Journal of Advanced Science and Technology 29, no. 8s (April 28, 2020): 2132 - 2139. Accessed May 5, 2024. http://sersc.org/journals/index.php/IJAST/article/view/13045.