Roshan, A.S.M.Burton, M.2020-08-182020-08-182019Tropical Agriculturist, 167(1):p.1-13https://dl-doa.nsf.gov.lk/handle/1/2449Contingent valuationFood safetyGood Agriculture Practices (GAP)Consumer willingness to pay for commodities certified under Sri Lanka good agriculture practices (SL-GAP)Article