LOYOLA-OPIELA, M. From the history of the idea of pre-primary education in the Polish lands. Acta Universitatis Nicolai Copernici Pedagogika, [S. l.], v. 29, p. 67–86, 2015. DOI: 10.12775/AUNC_PED.2013.004. Disponível em: https://apcz.umk.pl/AUNC_PED/article/view/AUNC_PED.2013.004. Acesso em: 23 jul. 2024.