@unpublished{repository3499,
           title = {BAP, PRESENSI, NILAI STATISTIK PENDIDIKAN 4G},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/3499/},
          author = {Acep, Kusdiwelirawan}
}