In-game
Calleja, Gordon.
Transgression in Games and Play
Kristine Jørgensen & Faltin Karlsen
Yi Zhu Li Lun Zhi Nan ( etc.) (z-lib.org)
Wei Zhi
Lun Zhong Guo De Ji Zhu Wen Ti ----Yu Zhou
The Routledge Companion to Video Game Studies; Second Edition
Mark J. P. Wolf & Bernard Perron