"Peer review" is the process through which experts in a field of study examine and assess the quality of articles before they are published. Peer review insures that the research described in a journal's articles is sound and of high quality. These articles usually contain a bibliography at the end of the article and information on the author’s academic qualifications and university at the beginning of the article.
Sometimes the term "refereed" is used instead of peer reviewed.
You can identify Peer reviewed journals in the following sources: