Weerasinghe, W.R.H.; Attanayake, R.N.; Weerakoon, G.; Paranagama, P.A.(Proceedmgs of the Postgraduate Institute of Science Research Congress. Sri Lanka, 2019)
Maduranga, H.A.K.; Attanayake, R.N.; Amarasinghe, M.D.; Weerakoon, G.; Paranagama, P.A.(International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)