Gooneratne, W.Olesiak, K.P.Samad, M.Agrarian Research and Training Institute2014-07-182014-07-181977https://dl-harti.nsf.gov.lk//handle/1/2150vii, 55p.Cooperative FarmingGroup workSri LankaGroup production:a case study of an experiment conducted in Beminiwatte in the Kegalle District of Sri Lanka