Hettige, S.T.2010-07-062010-07-061997Sri Lanka Journal of social sciences, 20(1 and 2):p.43-62https://dl.nsf.gov.lk/handle/1/5043Abstract available from Library, Please quote title when requestingPopulationPovertyEconomicElectricityTechnologySocio-economic issues relating to the sustainability of the Mahaweli upper catchmentArticle