Madhurangi, H.M.T.; Dissanayake, N. P.; Kodikara, K.A.S.; Perera, A.J.D.; Jayatissa, L.P.(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2016-01-28)
Rajapaksha, M.; Madarasinghe, S.K.; Dissanayake, N.P.; Kodikara, K.A.S.; Jayatissa, L.P.(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2021-02-17)