"Pseudocandona trigonelia [sic]". IUCN Red List of Threatened Species. Version 2.3. International Union for Conservation of Nature. 1996. http://www.iucnredlist.org/apps/redlist/details/18490. Retrieved May 18, 2011.
"Pseudocandona trigonelia [sic]". IUCN Red List of Threatened Species. Version 2.3. International Union for Conservation of Nature. 1996. http://www.iucnredlist.org/apps/redlist/details/18490. Retrieved May 18, 2011.