@unpublished{repository18817,
           title = {BAP, Presensi, Nilai},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/18817/},
          author = {Nanny Harmani, Nanny}
}