Tài liệu tham khảo WikiPedia: Isoglossa http://132.236.163.181/index.html?/DiversityOfLife... http://www.homolaicus.com/scienza/erbario/utility/... http://www.ppp-index.de/pppindex.dll?MID=2756 http://biopl-a-181.plantbio.cornell.edu/ http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl... http://www.mobot.org/MOBOT/Research/APweb/ http://www.theplantlist.org/browse/A/Acanthaceae/I... http://images.google.co.uk/images?q=Isoglossa&safe... https://web.archive.org/web/20121007023134/http://...
