Dharmaratne, H.R.W.Wijesinghe, W.M.N..M.2015-09-032015-09-031997Phytochemistry, 46(7):p.1293-1295https://dl-ifs.nsf.gov.lk/handle/1/600A trioxygenated diprenylated chromenxanthone from Calophyllum mooniiArticle