Thilakarathna, P.M.C.Amarasiri, K.P.M.M.Abeywardena, D.K.Y.2015-03-232015-03-23200711th International Conference on Sri Lanka Studies, "Social Realities and Natural Environment in Sri Lanka: Insiders' and Outsiders' Perspective" 01 - 03 November 2007, University of Portsmouth, UK.http://repository.kln.ac.lk/handle/123456789/5914enArticle