You have a couple options for searching for a peer reviewed article.
From the Library homepage, enter your term into the Discovery Tool.
On your results screen, Tweak your results to Peer-reviewed Journals
If you are already in a database, look for the words academic, scholarly, or peer-reviewed. Depending on the database, you will find these source types on the main search page or the results page. The images below show how they look in different databases.
