Dircio-Vargas, Axel, Javier García-García, Gerardo Salgado-Beltrán, and Aloisius Loka Son. “Strategies Used by Mexican Fourth-Grade Elementary Students in Solving Additive Word Problems”. Indonesian Educational Research Journal 2, no. 3 (March 13, 2025): 126–141. Accessed December 6, 2025. https://journal.id-sre.org/index.php/ierj/article/view/72.