Flores, G., Piedad, E. J., Figueroa, A., Tumamak, R. and Berdon, N. J. M. (2021) “A Sound-based Machine Learning to Predict Traffic Vehicle Density”, Recoletos Multidisciplinary Research Journal, 9(1), pp. 55–62. doi: 10.32871/rmrj2109.01.05.