POLCYN, J. The number of pupils and educational effects in comprehensive secondary schools. Ekonomia i Prawo. Economics and Law, [S. l.], v. 16, n. 2, p. 185–200, 2017. DOI: 10.12775/EiP.2017.013. Disponível em: https://apcz.umk.pl/EiP/article/view/EiP.2017.013. Acesso em: 23 jul. 2024.