GRZEŚKOWIAK, Alicja. Spatial Analysis of Adults Involvement in Education in Poland. European Journal of Social Science Education and Research, London, U.K., v. 2, n. 2, p. 13–24, 2015. DOI: 10.26417/ejser.v3i2.p59-68. Disponível em: https://revistia.com/index.php/ejser/article/view/316. Acesso em: 4 apr. 2025.