López-Acosta, Luis Alberto, and Daniel Rodríguez-Vergara. “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 12 (May 25, 2021): e1150. Accessed August 21, 2025. https://www.rediech.org/ojs/2017/index.php/ie_rie_rediech/article/view/1150.