This page lists a few databases that may be useful as you look for scholarly articles. The sub-pages will perform more effective searches. Just mouse-over the "Find Articles" tab to see a link to the sub-page.
Reference books may be helpful when you need an overview of topic, but you should NOT cite these sources in your paper. These materials can help you gain a general understanding of an issue and provide citations to useful sources. Use these citations to access the original source. It is the original source that you should cite in your paper.