[1] 蝦夷 - Wikipedia ( (10/25/2013, 2:32:24 PM 版)) http://ja.wikipedia.org/wiki/%E8%9D%A6%E5%A4%B7

[2] 蝦夷征討 - Wikipedia (11/4/2018, 3:43:15 AM) https://ja.wikipedia.org/wiki/%E8%9D%A6%E5%A4%B7%E5%BE%81%E8%A8%8E

[3] 蝦夷(えぞ) - Uyopedia, 7/21/2019, 7:36:29 AM, 7/12/2022, 5:07:13 AM http://uyopedia.a.freewiki.in/index.php/%E8%9D%A6%E5%A4%B7%EF%BC%88%E3%81%88%E3%81%9E%EF%BC%89