@unpublished{repository1974,
       publisher = {Universitas Muhammadiyah Prof. Dr. hamka},
           title = {ABSENSI, BAP, NILAI},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/1974/},
          author = {Arifin, Syaadiah}
}