While international development is an interdisciplinary field, most databases of journal articles are not; instead, they collect articles from a single discipline such as economics or sociology.
Books and journal articles are used to access scholarly research in your field. Books take a long time to research, write, and publish. Journal articles are more current, shorter and are usually published faster than books. Consider books when you want coverage of a topic often tapping a wide range of scholarship.
Look for these key features: