@unpublished{repository10343,
           title = {PRESPEKTIVE SUSTAINABLE COMPETITIVE ADVANTAGE IN PRODUCTION UNITS AT VOCATIONAL HIGH SCHOOL IN INDONESIA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/10343/},
          author = {Ihsana El Khuluqo, Ihsana El Khuluqo}
}