There can be many published academic (also known as scholarly) articles that are NOT peer reviewed. These articles are still:
However, they have not gone through the peer review process. Often this is due to the lengthy process involved.
If your lecturer requires you to use refereed articles in your assignments, you may need to choose a different article.
See the next page on finding peer reviewed articles.
Check our guide on critically evaluating resources if you are not sure if the article is scholarly: