Tài liệu tham khảo WikiPedia: Quiinaceae http://delta-intkey.com http://delta-intkey.com/angio/ http://delta-intkey.com/angio/www/quiinace.htm http://www.springerlink.com/content/j1h8721780q054... //dx.doi.org/10.1007%2Fs00606-005-0386-5