Weerasinghe, H.A S.Iqbal, M.C.M.2016-04-012016-04-012007Proceedings of the 63rd Annual Sessions of the Sri Lanka Association for the Advancement of Science, 2007:p.76https://dl.nsf.gov.lk/handle/1/23054Soil nutrient contents in the Ussangoda serpentine soilArticleRG/2006/EB/08FR 1629