Sofia jõgi (Estonian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sofia jõgi" in Estonian language version.

refsWebsite

Global rank Estonian rank

1books.google.com

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23^rd place

books.google.com

Hughes, Ralph H.; Hughes, Jane S. (1992). Iucn Directory of African Wetlands. IUCN. Lk 801. ISBN 978-2-88032-949-5. Vaadatud 8. jaanuar 2013.