Sathanandan, R.; Situbandara, S.N.B.A.; Gunasinghe, D.P.D.D.; Gunasekara, M.S.T.; Navarathne, D.M.A.S.; Gunawardena, S.(Department of English, Faculty of Humanities, University of Kelaniya, Sri Lanka, 2016)
Sangeetha, A.; Sandanayake, D.; Jayatissa, D.; Lakmali, M.; Madhushani, N.(English Language Teaching Unit, Faculty of Humanities, University of Kelaniya, Sri Lanka, 2016)