@unpublished{repository3037,
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
           title = {Absensi Sakubun Hapyou Semester 4 A, B},
            note = {Unpublished},
          author = {Utari, Retno},
             url = {http://repository.uhamka.ac.id/id/eprint/3037/}
}