Reference list on resume help

I am a senior in nursing school. I am building a resume to begin applying or internships. I just have a question about my reference list. I already have 2 former employers and would like to have 1 or 2 more references. I tutored a student in A&P and nutrition. Is it a good idea to put her down as a reference?
I would recommend simply stating "References provided upon request"There's no need to put them on your resume because employers may request different types of references -- previous supervisor, professional, personal, etc.