@unpublished{repository1831,
           title = {Presensi, BAP, Nilai Akhir Statistika 4E},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/1831/},
          author = {Sri, Nevi Gantini}
}