Umamaheswari.R, Uma.S, .R.Ganesan. “A Decision Tree – Based Method for Differential Diagnosis and Classification of Diseases Using Cough Sound”. International Journal of Advanced Science and Technology 29, no. 9s (June 2, 2020): 6556 - 6573. Accessed August 2, 2021. https://sersc.org/journals/index.php/IJAST/article/view/20356.