Pathiraja, P.M.E.K.Fernando, M.T.N.Abeysekera, A.W.A.D.R.2014-06-032014-06-032007The Planter, 83:p.329-334https://dl-cri.nsf.gov.lk//handle/1/3943Economics of monthly picking viz bimonthly picking of coconuts:an economic analysis