need six sources formatted in APA all about the Communication theory of identity

email from professor- “This should include two sentences (in your own words) describing the Interpersonal Theory as well as any additional information you want to include about the specific perspective of the theory that you’ll be discussing. Also include all of your 6 sources formatted in APA Style as well as any content that you have outlined or composed to prep for this assignment.” please also include the seminal work of the theory