Keywords are...
Try Boolean Operators...
Limit to Peer-Reviewed, Refereed or Scholarly articles...
Narrow the Date Range...
Sometimes it can be challenging and confusing to tell the difference between scholarly, peer-reviewed articles and popular articles. I often tell students that if it 'looks boring and sounds boring' it is more than likely a scholarly article!
Once you see a few scholarly articles you will see that they share a look and feel that is very different than magazine articles you might be used to reading.
Scholarly Journals/Articles are:
Popular Articles/Magazines are:
Here is an example of a scholarly article.
Here is an example of a popular journal/magazine article.
A secondary source interprets and analyzes primary sources. These sources are one or more steps removed from the event. Secondary Sources may have pictures, quotes or graphics of primary sources in them. Some types of secondary sources include:
Here is an example of a primary source.
Here is an example of a secondary source.