ГУРАН, С. В. Оf environmental education among youth in activities environmental ngos republic of Poland. Educational Dimension, Kryvyi Rih, Ukraine, v. 38, p. 194–198, 2013. DOI: 10.31812/educdim.v38i0.3203. Disponível em: https://journal.kdpu.edu.ua/ped/article/view/3203. Acesso em: 9 may. 2024.