De Alwis, K.A.Fernando, L.H.Jayasooriya, S.E.Kulasegaram, S.Perera, M.B.A.Sandanam, S.Sivasubramaniam, S.Wettasinghe, D.T.2014-11-182014-11-181980Tea Quarterly49(2)pp.5-12https://dl.nsf.gov.lk/handle/1/12603AgricultureLand capabilityLand classificationYieldA