In-game
Calleja, Gordon.
Yi Zhu Li Lun Zhi Nan ( etc.) (z-lib.org)
Wei Zhi
Fans, Bloggers and Gamers Essays on Partic
Moral Combat
Patrick M. Markey, PhD & Christopher J. Ferguson, PhD
The Paradox of Transgression in Games
Kristine Jørgensen & Torill Elvira Mortensen