Dissanayake, N.P.; Hathurusinghe, U.I.; Kodikara, K.A.S.; Ranasinghe, P.; Jayatissa, L.P.(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2018-02-15)
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)