Again, it is optional whether you enclose the details of your referees on your resume but if you do, bear in mind that you should notify your referees that they may be contacted by a prospective employer. Your referees should be work related and preferably, should be your direct supervisor who can comment adequately on your performance, skills and abilities. Personal referees or peers are not as valued for referee purposes. If you are a recent graduate, enclose an academic referee and a referee from any part-time work you may have undertaken.