Shreya Kharbanda, Chanchal Chawla. “Assessing the Role of Digital Payment Systems in Enhancing Operational Efficiency Among Unorganized Retailers”. European Economic Letters (EEL) 15, no. 4 (September 22, 2025): 695–704. Accessed October 26, 2026. https://www.eelet.org.uk/index.php/journal/article/view/3707.