PASIKOWSKI, S. The Threats of Heterogeneous and Fuzzy Variables Measurement in Research in Education. Przegląd Badań Edukacyjnych (Educational Studies Review), [S. l.], v. 1, n. 24, p. 209–221, 2017. DOI: 10.12775/PBE.2017.012. Disponível em: https://apcz.umk.pl/PBE/article/view/PBE.2017.012. Acesso em: 26 apr. 2024.