231 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "231" in English language version.

Last modified: 03:38:31, 21 March 2025 (UTC)

Ref.Un. Ref.Website

Global rank English rank

11books.google.com

3^rd place

3^rd place

books.google.com (Global: 3^rd place; English: 3^rd place)

Crespigny, Rafe de (2010). Imperial Warlord: A Biography of Cao Cao 155-220 AD. BRILL. p. 459. ISBN 9789004188303.