Kahagalla, T.H.; Herath, H.M.; Attanayake, R.N.; Senanayake, S.P.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)
Jayathilaka, S.A.S.D.; Wanigatunge, R.P.; Attanayake, R.N.; Edirisinghe, P.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)