Álvarez Martínez, Gustavo, y Nandayure Valenzuela Arce. 2008. Research on the BEIC Curriculum: Unveiling What Lies Under the Tip of the Iceberg. LETRAS, n.º 44 (julio), 109-46. https://www.revistas.una.ac.cr/index.php/letras/article/view/277.