Multiple works by same author in same year
Important: Confirm with your lecturer whether you are using APA 6th or APA 7th as they are slightly different.
In-text citations
When an author has published more than one cited article in the same year, distinguish each article by using a lower case letter after the year within the brackets (this is also written in the reference list).
In a study by Crowley (2011a), it was found that . . .
It is suggested that . . . (Crowley, 2011b).