@unpublished{repository19938,
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {BAP, ABSENSI DAN NILAI PROBLEMATIK MATEMATIKA SEKOLAH 7E},
            note = {Unpublished},
          author = {Hadi, Windia Hadi},
             url = {http://repository.uhamka.ac.id/id/eprint/19938/}
}