MARTINS, L. G. R.; STEINER, M. T. A.; WILHELM, V. E.; STEINER NETO, P. J.; DOS SANTOS, B. S. Efficiency and Productivity Change Evaluation of Paraná’s Credit Unions. IEEE Latin America Transactions, [S. l.], v. 17, n. 4, p. 548–555, 2019. Disponível em: https://latamt.ieeer9.org/index.php/transactions/article/view/486. Acesso em: 5 may. 2024.