The sources used in assignments are all included in the works cited page of each of the pdf.
The grammatical reference is the handbook required by this course
The formatting reference used is Purdue Owl
https://owl.english.purdue.edu/owl/
The background used is a photo of Andromeda Galaxy from:
http://space-facts.com/andromeda/
The header is a scene from animation movie Big Fish & Begonia（2016）