Miranda, Jessica, Maurício Fontes, Luiz Martini, and Felipe Miranda. “a Semiotic Analysis of Trigonometry in the Didactic Book of Mathematics”. Revista Hipótese 5 (April 15, 2019): 584–595. Accessed July 8, 2026. https://revistahipotese.editoraiberoamericana.com/revista/article/view/189.