A great place to find images, ideas, and background information for your Highlights presentation is the following databases.
All of the library databases will have the APA citations for the articles. When you find an article, image, or video, look for a "Cite" or "Citation" button. It will often be on a sidebar or at the bottom of the page. You can then copy the citations into your slides or discussions.
NOTE: make sure to check for any errors (typos, author or title in all caps, title not italicized, etc).