@unpublished{repository2270,
           title = {BAHAN AJAR BAHASA INDONESIA POLTEKES},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah PROF. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/2270/},
          author = {Sri Yuliawati, Sri Yuliawati}
}