Samarappuli, L.Yogaratnam, N.2014-12-162014-12-161995The Sri Lanka Forester, 22(1-2):p.13-24https://dl.nsf.gov.lk/handle/1/16744ForestryEcosystemsRain forestSoil nutrientsHeveaRubberAgroforestryRubber plantations as self-sustaining agroforestry systems