1. Chemonics International Inc., (2001) Biodiversity assessment for Uzbekistan, task order under the biodiversity & sustainable forestry. IQC (BIOFOR) USAID contract number: LAG-I-00-99-00014-00, submitted to: USAID Central Asian Republics Mission, Almaty, Kazakhstan.
http://pdf.usaid.gov/pdf_docs/PNACN475.pdf
. Accessed 22 Feb 2007.
2. Kaurichev, I.C. (Senior ed.) 1989. Pochvovedeniye, 4 izd. [Soil Science, 4th ed]. Agropromizdat, Moscow. [In Russian]
3. Makhmudov MM (2001) Country pasture/forage resource profiles: Uzbekistan.
http://www.fao.org/ag/AGP/AGPC/doc/Counprof/Uzbekistan/uzbekistan.htm
. Accessed 12 Jan 2008
4. National Biodiversity Strategy Project Steering Committee (1998) Republic of Uzbekistan biodiversity conservation: national strategy and action plan. Tashkent.
http://bpsp-neca.brim.ac.cn/books/actpln_uzbek/index.html
. Accessed 22 Feb 2007