Tài liệu tham khảo WikiPedia: Benzingia http://apps.kew.org/wcsp/ http://apps.kew.org/wcsp/namedetail.do?name_id=208... http://www.lankesteriana.org/lankesteriana/Vol.9(3... http://www.orchids.org/ooc/cgi_bin/direct.cgi?Acke...
