Amarasiri, A.M.S.S.; Attanayake, A.P.; Arawwawala, L.D.A.M.; Jayatilaka, K.A.P.W.; Mudduwa, L.K.B.(Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
Panchananthan, N.; De Silva, D.; Abeysekera, H.; Nanayakara, D.P.S.; Tirimanne, T.L.S.; Chandrasekharan, N.V.(Faculty of Science, University of Kelaniya, Sri Lanka, 2020)