Haq, I. K. ., and A. . Prasetiadi. “MAKHRAJ ‘AIN PRONUNCIATION ERROR DETECTION USING MEL FREQUENCY CEPSTRAL COEFFICIENT AND MODIFIED VGG-16”. Jurnal Teknik Informatika (Jutif), vol. 4, no. 1, Feb. 2023, pp. 217-24, doi:10.52436/1.jutif.2023.4.1.419.