Credo Reference is a database that Joyner Library has access to that will be of great use to you as your start your research. The database includes many reference books like encyclopedias, dictionaries, and more. Two other things that will be helpful in coming up with keywords and ideas for your research are their mind maps (pictured below) and their pro/con research tools, which shows both sides of current issues.
To use Credo Reference to develop your topic, you may want to try:
Here is a video that shows you how to use the Credo Mindmap, as well as a link to a mindmap about the topic phonology.
And here is a search box to search for items in Credo on the topic of Language: