Variables characterizing statistical graphs and related tasks in Costa Rica secondary education textbooks. Advances of Research in Mathematics Education, [S. l.], n. 20, p. 125–140, 2021. DOI: 10.35763/aiem20.4001. Disponível em: https://aiem.es/aiem/article/view/v20-arteaga-jimenez-batanero. Acesso em: 5 jul. 2026.