For a step-by-step explanation of how to get an article you've found in a database, see this guide.
The primary database for conducting research on literature and related areas is the MLA International Bibliography (MLAIB). It indexes books, articles, and websites on literary theory and criticism, dramatic arts (film, radio, television, theater), folklore, and the history of printing and publishing. Book reviews are not included.
OU subscribes to the MLAIB through EBSCO, so the interface may look familiar to you. However, the database has certain unique features.
The Modern Language Association has created several tutorials to help you use the bibliography.