Below are the sources I used for all the research on this site! There's a lot more information in them than what I've covered, such as the historical origins of the different styles and examples of historical artifacts. Although most of them are in Chinese, I highly recommend reading them to learn more if you know the language.
I've mentioned in the introduction that the styles of hanfu displayed here are not comprehensive of all the different types so here are some additional resources on the clothing and aspects of the movement.