Research Papers / Need some help with research "Comics in Education" [3]

Hi
I'm in a process of writing a long-term paper for my writing class. Actually, I'm still looking for some material to read before. The topic that I have chosen is "Comics in Education". I want to mainly focus on the use of graphic novels for teaching/learning English (both EFL and ESL) but I will be happy to mention other school-subjects and types of comics as well.

Do you know maybe some books or articles regarding the topic? It would be great if you could help me find some material for research.