Dharmaratne, H.R.W.Perera, D.S.C.Marasinghe, G.P.K.Jamie, J.2015-10-262015-10-261999Phytochemistry, 51:p.111-113https://dl-ifs.nsf.gov.lk/handle/1/668A chromene acid from Calophyllum cordato-oblongumArticle