@unpublished{repository2561,
            note = {Unpublished},
           title = {BERITA ACARA, ABSEN DAN NILAI},
       publisher = {Universitas Muhammadiyah Prof.Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/2561/},
          author = {Suyadi, Suyadi}
}