Extended essays require the use of scholarly articles, which are written by researchers or experts in their field. Scholarly articles are based on original research and experimentation, and build on previous ideas and discoveries by properly citing other research through references. Using scholarly sources is important for research papers because it allows students to contribute to the ongoing creation of new knowledge in a field by building upon and properly crediting previous work. The document provides information on finding scholarly articles through databases like EBSCO, Google Scholar, and a federated search of the KAUST University library, as well as open access journals. It encourages students to search these resources to find at least two scholarly articles to use in their own research.