RAVI, Nandhini. Digital Payment Systems and Future of Cashless Economies. International Journal of Commerce, Finance and Digital Economy, [S. l.], v. 4, n. 2, p. 01–13, 2021. DOI: 10.67228/3071642X/IJCFDE-2021PII2L8M. Disponível em: https://worldcometresearchgroup.com/index.php/ijcfde/article/view/794. Acesso em: 28 jul. 2026.