KAM-PaY: Closed Wallet with SQL-Technology and Biometric Authentication. Journal of Information Technology and Digital World, [S. l.], v. 6, n. 1, p. 87–95, 2024. DOI: 10.36548/jitdw.2024.1.007. Disponível em: https://irojournals.com/itdw/article/view/1401. Acesso em: 18 mar. 2026.