@unpublished{repository9206,
       publisher = {Universitas Muhammadiyah Prof Dr HAMKA},
           title = {BAP Absensi Nilai Matematika Diskrit 6C},
            note = {Unpublished},
          author = {Khusna, Hikmatul},
             url = {http://repository.uhamka.ac.id/id/eprint/9206/}
}