Analysis of information sources in references of the Wikipedia article "Իտիգրան" in Armenian language version.
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: CS1 սպաս․ unfit URL (link){{cite web}}
: CS1 սպաս․ unfit URL (link){{cite web}}
: CS1 սպաս․ url-status (link) (сост. А. В. Андреев). М.: Wetlands International, 2001. 296 с. ISBN 90-5882-986-3