Scholarly books and articles are written by experts such as your professors. Before a book or article is published in by an academic publisher, the draft goes through a process of peer review, in which other experts in the field review it for accuracy, authenticity, and originality. Articles usually present the results of original research, and books also generally give more descriptive context. Scholarly books and articles are located using article library catalogues and databases that provide descriptions and in most cases, direct full-text access.
Watch this 2 minute YouTube video to find out what a scholarly article is and how to identify it.