The Challenges and Difficulties of Teachers in the Insertion and Practice of Environmental Education in the School Curriculum. International Journal on Social and Education Sciences, [S. l.], v. 2, n. 1, p. 49–56, 2019. Disponível em: https://ijonses.net/index.php/ijonses/article/view/1953. Acesso em: 4 aug. 2025.