Dharmaratne, H. R. W.Waniagasekara, W.M.A.P.Amarasekara, A.S.2016-01-212016-01-211996Natural Product Letters, 8(4):p.241-243https://dl-ifs.nsf.gov.lk/handle/1/1133Batukinaxanthone, a New Trioxygenated Diprenylated Chromenxanthone from Calophyllum ThwaitesiiArticle