@unpublished{repository3155,
           title = {Berita acara perkuliahan, absensi dan nilai},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/3155/},
          author = {Eka Kartikawati, Eka}
}