CHALLA, Kishore. The Future of Cashless Economies Through Big Data Analytics in Payment Systems. International Journal of Scientific Research and Modern Technology, India, v. 1, n. 12, p. 60–70, 2022. DOI: 10.38124/ijsrmt.v1i12.467. Disponível em: https://ijsrmt.com/index.php/ijsrmt/article/view/467. Acesso em: 20 jan. 2026.