Singh C. The Impact of Digital Payment Apps (UPI, Paytm, Apple Pay) on Spending Behavior: A Comprehensive Analysis. int. j. eng. mgmt. res. [Internet]. 2026 Feb. 6 [cited 2026 May 8];16(1):130-3. Available from: https://ijemr.vandanapublications.com/index.php/j/article/view/1865