Hi Ms. Hughes,
According to the Publication Manual of the American Psychological Association, 6th Ed., p. 188, "The DOI is typically located on the first page of the electronic journal article, near the copyright notice."
Thank you,
Marshall M. Abuwi, M.A., M.Ed.
Ph.D. (ABD) Researcher
Reference Assistant
Reese Library, GRU Summerville Campus
(706)-737-1744