Izumi, K.Ranatunga, A.S.Hector Kobbkaduwa Agrarian Research and Training Institue2014-07-182014-07-181974https://dl-harti.nsf.gov.lk//handle/1/2440x, 35p.Agricultural PricesRiceSri LankaCost of production of paddy, Maha 1972/73:a study based on farm record books maintained in five selected districts