P. Shanmugapriya, V. Rajakani, P. Parthasarathy, R. Elavarasu. “Enhancing the Noise Immunity in Speech Signal by Using Combined Filtering Technique”. Annals of the Romanian Society for Cell Biology (February 1, 2021): 5330–5340. Accessed December 2, 2022. https://www.annalsofrscb.ro/index.php/journal/article/view/704.