Looking for some good sources regarding bitcoin cash

I am giving a presentation soon regarding why I believe bitcoin cash is a better coin than bitcoin. I am looking through whybitcoincash.com and I have come across some interesting information but I can't find any credible sources to back the information. It says that the global cash market is 10x bigger than the gold market. Is this true? Looking for any credible/scholarly sources relating to bitcoin cash that could help me back some of my information.