If multiple sources support your statement, you should list them within your parenthetical in-text citation in the same order that as you would list them in a reference list. Separate each source with a semicolon.
Example: (Brown & Williams, 2015; Jackson, Abbott and Miller, 1980; King, 2024)
For more information and examples look at the APA Style Blog: Writing In-Text Citations in APA Style post's section on "Multiple In-Text Citations".
