Here are some recommended subject encyclopedias available through the subscription database, Gale Virtual Reference Library, at the HSU Library. These are a great way to begin your research, by getting an overview of your topic, from the perspective of multiple disciplines.
Gale Virtual Reference Library Combined search for 120 fulltext reference works, including these.
Here are some subject encyclopedias in the print Reference Collection:
A review article is a specialized form of a journal article: it can cover a lot of territory for you and save you time as you do your own literature review.