Weerasinghe, P.; Abeysinghe, T.; Paranagama, P.A.(International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)
Nusra, M.S.F.; Paranagama, P.A.; Amarasinghe, L.D.; Udukala, D.N.(19th Conference on Postgraduate Research, International Postgraduate Research Conference 2018, Faculty of Graduate Studies,University of Kelaniya, Sri Lanka, 2018)