Hobbit Research Paper!

Hey guys. I'm working on a research paper about The Hobbit and how it creates the stereotype of a hero, using the social facets of gender, sexuality, and class.

I need to focus more on what a stereotypical hero is, and how masculinity and femininity are present in the characters Bilbo and Thorin.

I'm having trouble finding scholarly sources. I need 8 and I currently have 2.

Any help for a fellow Hobbit fan would be greatly appreciated! Thanks!