S. Hidayat, Muhammad Tajuddin, Siti Agrippina Alodia Yusuf, Jihadil Qudsi, and N. N. Jaya, “WAVELET DETAIL COEFFICIENT AS A NOVEL WAVELET-MFCC FEATURES IN TEXT-DEPENDENT SPEAKER RECOGNITION SYSTEM”, IIUMEJ, vol. 23, no. 1, pp. 68–81, Jan. 2022.