Amerasinghe, N.2010-07-062010-07-061975Journal of the National Science Council of Sri Lanka, 3(2):p.79-99https://dl.nsf.gov.lk/handle/1/6645Agricultural ProductionIrrigationInnovationsAgricultural EconomicsAgricultureIncreasing farm lncomes and efficiency of resource use under peasant farming conditions in Sri LankaArticle