Don't use friends for your only references if there is someone in a position of authority in your previous position who would give you a good reference or a professor or teacher who would do the same. It's okay to have a friend for one, but if you have been employed and don't list anyone from your work experience it will raise an immediate flag. If you've had more than one job and didn't get along well in the most recent one, it's okay to go two back.
On your employment objective - they want to see what you want to do for them, not what you hope they can do for you. You can get these two opposites to work together in one sentence. Puma