Thennakoon, M.T.C.P.De Silva, D.A.M.2020-11-162020-11-162012Sabaragamuwa University Journal, 11(1):p.91-104https://dl-susl.nsf.gov.lk/handle/1/712Market window analysisCost of productionProfitabilityEconomic efficiencyMarket window analysis:a case of tobacco, paddy and big oinon farmers in Galewela, Sri LankaArticle