People don't usually include references in their resumes. It's very uncommon. But under certain circumstances, you might still want to do it.
When should you put references on your resume?
If the job listing asks for references.
If your reference is someone well-known in the company or industry.
If you’re a fresh graduate.
If you’re a freelancer.
If there’s an employment gap on your resume.
What's the best way to include references on a resume?
It comes down to contact details and a short introduction. Don't forget to include these details.
Reference phone number or email address
Reference description including where you worked together, when you worked together and your working relationship. (optional)