Jayasundara, J.Kotagama, H.B.Weerahewa, J.2014-11-122014-11-121999Tropical Agricultural Research, 11:p.301-307https://dl.nsf.gov.lk/handle/1/12431EconomicsWater consumptionWater safetyWater costsWater supplyWillingness to pay for drinking water quality improvementsA