Helali, W., Hajaiej Ζ., and A. Cherif. “Real Time Speech Recognition Based on PWP Thresholding and MFCC Using SVM”. Engineering, Technology & Applied Science Research 10, no. 5 (October 26, 2020): 6204–6208. Accessed January 22, 2022. https://www.etasr.com/index.php/ETASR/article/view/3759.