MAHESH A.; GANESH BHAT S. A Systematic Review and Research Agenda of Digital Payment System with reference to Unified Payment Interface. International Journal of Management, Technology and Social Sciences (IJMTS), [S. l.], v. 7, n. 2, p. 679–709, 2022. DOI: 10.47992/IJMTS.2581.6012.0245. Disponível em: https://srinivaspublication.com/journal/index.php/ijmts/article/view/2143. Acesso em: 3 jul. 2024.