• Start with an article in a scholarly encyclopedia for the field and read about your topic.
• As you read decide how you want to focus your research 
• From that encyclopedia’s bibliography collect relevant articles, books and other resources Consult other appropriate topical reference sources
• Consult indexes for articles and chapters of books
• Consult your library’s catalogs for books and other materials.

 
"SATBs"

• What is the scope of the source? What is covered? What is omitted?
• Who is the author or editorial board? Are they knowledgeable in the field?
• Timeliness: when was the resource written? Is it up-to-date? Does it include new scholarship?
•  What is their bias?
• Is the source for a scholarly or popular audience?