@unpublished{repository50446,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {sk,bap,daftarhadir,nilai peng. ilmu sejarah},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/50446/},
          author = {Jumardi, Jumardi}
}