PRAVEEN PAUL JEYAPAUL, PATHAMUTHU P., SUGANYA S. Application of TOPSIS for ranking the perception of benefits and problems associated with Digital Payment system in suburban India. European Economic Letters (EEL), [S. l.], v. 14, n. 1, p. 748–757, 2024. DOI: 10.52783/eel.v14i1.1095. Disponível em: https://eelet.org.uk/index.php/journal/article/view/1095. Acesso em: 29 sep. 2025.