Guerrero, Ruben. “Application of Ethnomathematics in the Teaching of Integral Calculus at the State Polytechnic University of Carchi”. INTRA: Interdisciplinary Research and Analysis Journal 2, no. 1 (August 15, 2025): 1–11. Accessed January 29, 2026. https://intraj.org/index.php/intra/article/view/433.