Croassacipto, M., Ichwan, M. and Utami, D. B. (2020) “Tone Classification Matches Kodàly Handsign with the K-Nearest Neighbor Method at Leap Motion Controller”, International Journal on Information and Communication Technology (IJoICT), 5(2), pp. 40-45. doi: 10.21108/IJOICT.2019.52.283.