Godino, Juan D., Teresa Neto, Miguel R. Wilhelmi, Lilia P. Aké, Silvia Etchegaray, and Aitzol Lasa. “Algebrization Levels of School Mathematics Practices. Networking of the Onto-Semiotic and Anthropological Perspectives”. Advances of Research in Mathematics Education, no. 8 (November 4, 2015): 117–142. Accessed August 24, 2026. https://aiem.es/aiem/article/view/3970.