I'm writing a formal report for my Technical Writing professor on why I believe Bushiroad should increase support for the English side of Weiss. Obviously my professor isn't going to have a clue on what it is but I just need some statistics that I can use to support my argument. So far I've listed that I will compare on how further advanced Japanese side is compared to EN, the market prices, and also how there seems to be a customer satisfaction awareness on the JP side with things like power-up sets while EN has none.

So far I have the official Weiss Schwarz page, the wikipedia article, 9th cx, and Top Tier Tears as references. Do you guys have any suggestions on what other sources I could use?