I think she mentions tons of stuff in all her magazine interviews. You can find some translations in the Library section here on AHS, and I did some translations too which you can find at my blog.
Hard to write up a whole thesis on this though. Her lyrics, magazine interviews, TA blog entries, even tweets will be super important references, but it's gonna be tough work if you don't have a grasp on the Japanese language or come across weak/mistranslations of stuff... Just my honest opinion.
If you need help though, I can offer to translate some stuff for you. Just ask, yep~
