Zasky, Jason (2009-07-20), „Discouraging Words”, Failure Magazine, arhivirano iz originala na datum 2011-11-19, pristupljeno 2015-04-16, »But in terms of invented languages, it's the most outlandishly successful invented language ever. It has thousands of speakers—even native speakers—and that's a major accomplishment as compared to the 900 or so other languages that have no speakers. – Arika Okrent«
geocities.com
„enhavo”. Web.archive.org. 2009-10-27. Arhivirano iz originala na datum 2009-10-27. Pristupljeno 2010-12-05.
„Elte Btk”. Webcitation.org. Arhivirano iz originala na datum 2009-10-21. Pristupljeno 2010-12-05.
Zasky, Jason (2009-07-20), „Discouraging Words”, Failure Magazine, arhivirano iz originala na datum 2011-11-19, pristupljeno 2015-04-16, »But in terms of invented languages, it's the most outlandishly successful invented language ever. It has thousands of speakers—even native speakers—and that's a major accomplishment as compared to the 900 or so other languages that have no speakers. – Arika Okrent«
„Esperanto”. Ling.ohio-state.edu. 2003-01-25. Arhivirano iz originala na datum 2011-06-22. Pristupljeno 2010-12-05.
„User locations”. Pasporta Servo. Arhivirano iz originala na datum 2013-11-15. Pristupljeno 6 January 2014..
„enhavo”. Web.archive.org. 2009-10-27. Arhivirano iz originala na datum 2009-10-27. Pristupljeno 2010-12-05.
„Elte Btk”. Webcitation.org. Arhivirano iz originala na datum 2009-10-21. Pristupljeno 2010-12-05.
