A Digital Object Identifier (DOI) is assigned to electronic journal articles to identify and access those articles. APA citation format requires the inclusion of DOIs within a citation when available.
Most current academic articles include a DOI, which is usually listed on the first page of the article:
The DOI may also be listed on the article record page within a library database:
To locate missing DOIs for articles, use the CrossRef DOI lookup tool.
The CSU librarians can support you during the research process with personalized reference services. We are happy to help you with the following tasks: