VERMES, Pál. Access in the Systematic Approach of Customer Service. Economica, [S. l.], v. 1, n. 1, p. 21–29, 2020. DOI: 10.47282/ECONOMICA/2008/1/1/4378. Disponível em: https://ojs.lib.unideb.hu/economica/article/view/4378.. Acesso em: 18 jul. 2024.