Dharmaratne, H.R.W.Sajeevani, J.R.D.M.Marasinghe, G.P.K.Ekanayake, E.M.H.G.S.2015-09-032015-09-031998Phytochemistry, 49(4):p.995-998https://dl-ifs.nsf.gov.lk/handle/1/623Article