Cáceres Sandoval, Mariela Elizabeth, Felipe Sepúlveda, and Cristina Rodríguez. “Standardization of the EGMA Instrument for the Evaluation of Mathematics in the Initial Levels of Basic Education”. Pedagogical Studies 46, no. 1 (June 29, 2020): 301–318. Accessed July 17, 2024. http://revistas.uach.cl/index.php/estped/article/view/6442.