BAUER, Friedrich L.; SAMELSON, Klaus. Regulatory Compliance for Digital Payment Gateways. International Journal of Commerce, Finance and Digital Economy, [S. l.], v. 8, n. 1, p. 01–15, 2025. DOI: 10.67228/3071642X/IJCFDE-2025PI5H8F. Disponível em: https://worldcometresearchgroup.com/index.php/ijcfde/article/view/821. Acesso em: 28 jul. 2026.