@unpublished{repository54930,
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF. DR. HAMKA},
           title = {SPS Kajian Kritis Pembelajaran IPS},
            note = {Unpublished},
          author = {Eko Digdoyo, Eko},
             url = {http://repository.uhamka.ac.id/id/eprint/54930/}
}