In basic terms, scholarly sources are written by scholars for scholars and go through a scholarly publication process. This scholarly publication process usually includes some form of peer-review, which means it is vetted by experts in the field and therefore considered more credible than information that hasn't gone through this process.
Often in social work, you will be looking for scholarly articles that include empirical studies. Empirical studies are important because they provide the evidence that the conclusions of the article are based on. Below you will find some of the best places to locate these types of articles and some tips for how to search for them.
Using Boolean Operators when searching will give you better, and more accurate, results.