"Chapter 7: Data", Persona 4 Official Perfect Guide, Famitsu Editorial Staff. Published by Enterbrain (2008). Japanese. p. 346-359 (Skill Data). ISBN-13: 978-4757744561.
"Chapter 5: Data", Persona 4 The Golden: The Complete Guide, Dengeki Playstation Editorial Staff. Published by Kadokawa (2012). Japanese. p. 359-373 (Skill Data). ISBN-13: 978-4048866637.