In addition to your HDE course materials, ebooks/books and general audience articles from newspapers and magazines can help you refine your research question and find helpful background information.
To Search for Ebooks/Books: Advanced Search: UC Davis Library Catalog
Example searches:
To Search for General Audience Articles:
Consider these criteria to determine if a source is reputable:
Author: Who produced the information? What can you find about the author's credentials?
Accuracy: Does the author cite references to support their thesis? If so, are the references also from scholarly, credible sources? How does this information compare to other sources you have found?
Timeframe: When was the source published? Is the information still relevant?
For more tips and guidelines: