Ortega, Holger, Rodrigo Tufiño, and Juan Estévez. “Towards the Construction of a Device to Support Blind People in the ‘cuarenta’ Game”. Enfoque UTE 8, no. 4 (September 29, 2017): pp. 27 - 40. Accessed April 20, 2024. https://ingenieria.ute.edu.ec/enfoqueute/index.php/revista/article/view/170.