Warnakulasooriya, H.U.Herath, R.M.Gunawardena, J.A.T.P.2020-12-072020-12-072008Annals of the Sri Lanka Department of Agriculture, 10:p.263-272https://dl-doa.nsf.gov.lk/handle/1/2894Cost of rice cultivationProfitability parametersRiceSubsistence farmingProfitability of semi-subsistence rice farming in the Kalutara district under rain-fed conditionA