@unpublished{repository10271,
            note = {Unpublished},
           title = {Presensi Mahasiswa, BAP, Daftar Nilai Aljabar Abstrak},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/10271/},
          author = {Soebagyo, Joko}
}