Analysis of information sources in references of the Wikipedia article "Hrazdan (river)" in English language version.
The flow of the Hrazdan (formerly Zangi) river from Lake Sevan past Yerevan to the Arax River...
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: CS1 maint: location missing publisher (link)ERIVAN. A city of Armenia, situated on the river Zengy...
There is an imposing citadel, on a hill of moderate elevation about a quarter of a mile south of the town, bordering also on the river Zengy...
The stele bears a text of forty-seven lines in Urartian cuneiform identifying King Rusa II (r. c. 680–639 BCE), son of Argishti II, and his building and irrigation works, including the construction of a canal from the Ildaruni (Hrazdan) River.
...the upper course of the Hrazdan river (Turkish Zanga) which flows from Lake Sevan to the Araxes.