CIARKO, M. Measuring the Quality of Educational Services on the Example of Secondary Schools in Poland. Virtual Economics, [S. l.], v. 5, n. 3, p. 50–68, 2022. DOI: 10.34021/ve.2022.05.03(3). Disponível em: https://virtual-economics.eu/index.php/VE/article/view/198. Acesso em: 6 may. 2024.