GURINDERPAL SINGH BRAR, A. B. V. K. M. Unified Payment Interface: A Digital Gateway to Indian Payment System. International Journal on Recent and Innovation Trends in Computing and Communication, [S. l.], v. 11, n. 9, p. 5169–5177, 2023. Disponível em: https://ijritcc.org/index.php/ijritcc/article/view/10243. Acesso em: 13 dec. 2025.