UPI Fraud Transaction Detection using Machine Learning. International Journal of Engineering Research and Science & Technology, [S. l.], v. 22, n. 3, p. 504–519, 2026. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/4059. Acesso em: 3 sep. 2026.