Cordero, Francisco, Claudia Cen, and Liliana Suárez. “THE FUNCTIONS AND FORMS OF GRAPHS IN TEXTBOOKS: AN INSTITUTIONAL PRACTICE IN HIGH SCHOOL”. Revista Latinoamericana de Investigación en Matemática Educativa 13, no. 2 (January 29, 2010): 187–214. Accessed October 9, 2026. https://relime.org/index.php/relime/article/view/318.