@unpublished{repository4368,
            type = {Documentation},
           title = {surat undangan, materi  SDN 01 juli 2019 34},
       publisher = {MM Uhamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/4368/},
          author = {Bambang, Dwi Hartono}
}