M. ABOULKHIR, S. BOUREKKADI, S. KHOULJI, K. SLIMANI, and M. L. KERKEB, “A New Digital Solution Helps Automatic Voice Recognition”, IJET, vol. 7, no. 3.4, pp. 177–180, Jun. 2018, doi: 10.14419/ijet.v7i3.4.16769.