Development of children’s ecological awareness in "Płomyk" in the II Republic of Poland. Kwartalnik Naukowy Fides et Ratio, [S. l.], v. 34, n. 2, p. 74–90, 2018. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/515. Acesso em: 28 jun. 2025.