de Fiori, Andréia, Fernando Antonio Bataghin, and Rogério Hartung Toppa. 2008. “The Perception of Environmental Impacts by Teachers of the Primary Level Associated to the Soil Use and Occupation”. O Mundo Da Saúde 32 (3). São Paulo:347-58. https://doi.org/10.15343/0104-7809.200832.3.10.