Carvalho, Ely Bergo de, and Jamerson de Sousa Costa. “History Teaching and Environment: A Hard Approach”. História & Ensino 22, no. 2 (December 30, 2016): 49–71. Accessed August 24, 2024. https://ojs.uel.br/revistas/uel/index.php/histensino/article/view/26616.