Theses and dissertations are a great place to see examples of literature reviews (almost every thesis or dissertation will have one) and they are great places to find additional resources for your own literature review.
Phillips Library has access to ProQuest's Dissertations and Theses database. After clicking the link below make sure you are only searching dissertations and theses by clicking the arrow at the top of the page that says "Searching: 6 databases" and change the search to just the dissertation and theses database.
Literature reviews typically follow the introduction and come before the "methods" section of journal articles. Sometimes they have the heading "Literature Review" and sometimes they do not.