Wijesooriya, L.I.; Siriwardana, S.R.(19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018)
Wijesooriya, L.I.; Perera, D.P.; Dissanayake, D.M.D.P.; Wijenayake, D.L.C.D.; Siriwardana, S.R.(19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018)
Siriwardana, S.R.; Gunawardane, N.H.; Bandara, A.S.; Fernando, D.P.S.(19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018)