@unpublished{repository20914,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {SK Mengajar, BAP, ABSENSI DAN NILAI PROBLEMATIK MATEMATIKA SEKOLAH KELAS 7E},
             url = {http://repository.uhamka.ac.id/id/eprint/20914/},
          author = {Hadi, Windia Hadi}
}