Zegarra Rodriguez, Demostenes, and Luiz Carlos Brandão Junior. “Determining a Non-Intrusive Voice Quality Model Using Machine Learning and Signal Analysis in Time”. INFOCOMP Journal of Computer Science, vol. 18, no. 2, Dec. 2019, p. pp-pp, http://177.105.60.18/index.php/infocomp/article/view/630.