W.D.N Madhavika, and R.M.N.M. Rathnayake. “Impact of Internet Usage on Undergraduate Academic Performance (Special Reference to YouTube Online Video Platform Usage)”. Global Journal of Management and Business Research, vol. 20, no. G1, Jan. 2020, pp. 11-24, https://journalofbusiness.org/index.php/GJMBR/article/view/3015.