While Wikipedia can sometimes be a good starting point, it is not considered "scholarly." If you are you having trouble distinguishing between the peer-reviewed/scholarly journals from the trade publication or popular magazines, Below is a link to a document that will help explain the differences.
REVIEW VERSUS RESEARCH
It is also important to be able to distinguish between review articles and research articles. A review article’s primary purpose is not to present new research, but to summarize, analyze, discuss, and provide an overview of previously published work on a topic. A research article is designed to present new research, methods, and/or findings. Research articles often employ the IMRAD (Introduction, Methods, Research, and Discussion) format. Below are a few articles of interest on this topic.
Here is a tutorial on how to find full-text articles.