Peer review: the "evaluation of scientific, academic, or professional work by others working in the same field." For management research, this means that peer-reviewed articles or books have passed a test that judges the accuracy and validity of their findings.
Scholarly research: publications by scholars that have been peer-reviewed.
Where do I find them? Find articles in the databases listed under the tab "Find Scholarly Research" above - they are usually marked as "academic", "scholarly" or "peer-reviewed". Find books in the library catalog, or in the Hathi Trust database or on Google Scholar (which we will get for you through Interlibrary Loan if we don't have them here.)