Costa, Grênivel Mota da, Uiara Catharina Soares e Silva, and Valdemiro Lopes Marinho. “Paulo Freire’s Contribution for Environmental Education”. SITIENTIBUS série Ciências Biológicas 9, no. 2/3 (September 30, 2009): 97–101. Accessed July 6, 2026. https://periodicos.uefs.br/index.php/sitientibusBiologia/article/view/7996.