Duarte-Barón, Katherin, Julieth X. Pabón, Reynaldo Claros, and Jhon J. Gil. “Design and Construction of a Device for Facilitating the Learning of Braille Literacy System”. Ingeniería y Competitividad 18, no. 1 (January 19, 2016): 77–90. Accessed December 22, 2024. https://revistaingenieria.univalle.edu.co/index.php/ingenieria_y_competitividad/article/view/2179.