Waidyanatha, U.P.De S.Goonasekera, G.A.J.P.R.2012-06-252012-06-251975Journal of the Rubber Research Institute of Sri Lanka52pp.10-19https://dl.nsf.gov.lk/handle/1/8904AgricultureLeaf areaPunched disc methodPlanimetryPlant growthRubberHevea brasiliensisSome methods for determining leaf areas in HeveaArticle