Calvache Mora, Carlos Alberto, and Mayra Yaned Vergara. “Design of a Program of Prevention of Vocal Risks for Teachers of the Corporación Universitaria Iberoamericana”. Areté 13, no. 1 (November 30, 2013): 166–174. Accessed November 12, 2026. https://arete.ibero.edu.co/article/view/92.