Madhushani, H.N.G.; Athapaththu, A.M.H.K.; Athapaththu, S.P.; Navarathne, A.S.; Kumari, H.R.U.E.(Department of English, Faculty of Humanities, University of Kelaniya, Sri Lanka, 2016)
Serasinghe, K.H.; Galagama, I.K.; Gunathilaka, S.N.(5th National Conference on Applied Social Statistics (NRCASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
Keerthiwansha, N.W.B.S.(The Third International Conference on Linguistics in Sri Lanka, ICLSL 2017. Department of Linguistics, University of Kelaniya, Sri Lanka., 2017)