NIEDZIÓŁKA, Paweł; KORZEB, Zbigniew. Cost efficiency in commercial banking in Poland. Linear ordering approach . Ekonomia i Prawo. Economics and Law, [S. l.], v. 23, n. 4, p. 539–558, 2024. DOI: 10.12775/EiP.2024.027. Disponível em: https://apcz.umk.pl/EiP/article/view/52704. Acesso em: 2 jul. 2025.