Differentiate between primary and secondary data sources. Is one better than the other?
A primary source is one where you've read the original paper and cited that in your work. So if you're citing Jones (2008), that means that you've read Jones (2008).
A secondary source is one where you've read about the original paper in another's paper, but you've cited that original paper ...
Explains the difference between primary and secondary sources in a referenced paper. Provides a detailed example of each and refers to a website that provides further explanation if necessary. Discusses the benefits of primary sources.