R.S.Shudapreyaa, T.Yawanikha, A.Mahalakshmi, J.Mary Jenifer, G.Kavipriya. “ANALYSIS OF UDEMY COURSES BASED ON MACHINE LEARNING ALGORITHM”. International Journal of Control and Automation, Vol. 13, no. 1, Apr. 2020, pp. 501 -07, http://sersc.org/journals/index.php/IJCA/article/view/26865.