Weerasuriya, T.Nesbitt, H.W.Fyfe, W.S.2014-12-162014-12-161991Journal of the Soil Science Society of Sri Lanka, 7:p.54-75https://dl.nsf.gov.lk/handle/1/16251GeologySoil analysisGeochemistrySoil fertilityGeochemical characteristics of some Sri Lankan soilsArticle