Just like ATLA RDB is the premier database for articles, essays, and book reviews in religion and theology, other disciplines have subject-specific databases.
To find these databases
Examples of other databases: Index to Jewish Periodicals, Arts & Humanities Full Text, America: History & Life.
Exercise: (1) Find at least one other database that is relevant to your research. (2) Do a search within that database to find 2-3 additional sources for your paper.
Exercise: Look at the options within ATLA RDB results list.