@unpublished{repository13177,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {absensi, bap, nilai},
            note = {Unpublished},
          author = {Hamid Al Jufri, Jufri},
             url = {http://repository.uhamka.ac.id/id/eprint/13177/}
}