@unpublished{repository31791,
            note = {Unpublished},
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF. DR. HAMKA},
           title = {PPKN KELAS 1A},
             url = {http://repository.uhamka.ac.id/id/eprint/31791/},
          author = {Eko Digdoyo, Eko}
}