نوک‌شاخ کوتوله سیاه (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "نوک‌شاخ کوتوله سیاه" in Persian language version.

refsWebsite

Global rank Persian rank

1iucnredlist.org

88^th place

166^th place

1books.google.com

3^rd place

6^th place

books.google.com

Terry Stevenson, John Fanshawe (2004), Birds of East Africa (به انگلیسی), A&C Black, p. 246

iucnredlist.org

BirdLife International 2009. Tockus hartlaubi. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. <www.iucnredlist.org>. Downloaded on 18 June 2011.