If your topic is interdisciplinary and touches on other subjects like public policy, economics, psychology, or sociology, you will want to check databases specifically focused on that topic.
The Law Library catalog is a good place to start, as it searches all of the USMAI catalogs and multiple databases, including some EBSCO databases and HeinOnline. .
If your article is very interdisciplinary, you may want to walk over to the RLB Library, which has access to a wider range of databases than the Law School.