López-Acosta LA, Rodríguez-Vergara D. Systemic-functional analysis of algebraic texts: towards an understanding of their discursive nature in history and some implications in their teaching. IE Revista de Investigación Educativa de la REDIECH [Internet]. 2021May25 [cited 2025Aug.21];12:e1150. Available from: https://www.rediech.org/ojs/2017/index.php/ie_rie_rediech/article/view/1150