Piyadasa, H.T.N.I.Thiruchelvam, S.2014-11-122014-11-122005Tropical Agricultural Research, 17:p.162-172https://dl.nsf.gov.lk/handle/1/11997Environmental SciencesRecreational vauleBopath-EllaTraval cost methodSocio-economic statesAn estimation of the recreational value of Bopath-Ella in Ratnapura:A traval cost approachA