Create your Works Cited by using the template of core elements. List each relevant element for every source.
For online sources list each relevant element from containers 1 and 2, and include an access date.
Include a Digital Object Identifier (DOI) to an online journal article when possible, eg. https://doi.org...
If no DOI is available, include a URL without http:// or https://
On a database, use the permanent link or permalink.
Include an at the end of a citation. Your professor requires it.