SAO Wikia on Twitter: "9 November, 2021 also marks the release of the English translation of SAO Alternative "Gun Gale Online" volume 10. The book can be purchased here: 1. Bookwalker (ebook)
Sword Art Online Light Novel Volume 18 | Sword Art Online Wiki | Fandom
Buy Sword Art Online 10 - light novel Paperback – Illustrated, April 18, 2017 Online in Italy. 0316390437
Sword Art Online Light Novel Volume 18 | Sword Art Online Wiki | Fandom
Sword Art Online 18 (light novel): Alicization Lasting by Reki Kawahara
Sword Art Online 18 (light novel) | Yen Press
Sword Art Online Light Novel Volume 25 | Sword Art Online Wiki | Fandom