de la Cruz Urbina, Fredy, and Gabriela Buendía Abalos. “The Traditional Tortilla: A Significance Context for the Mathematics of Variation”. IE Revista de Investigación Educativa de la REDIECH 12 (February 19, 2021): e1098. Accessed August 30, 2025. https://mail.rediech.org/ojs/2017/index.php/ie_rie_rediech/article/view/1098.