@unpublished{repository54968,
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF. DR. HAMKA},
           title = {surat keterangan penelitian dan pkm},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/54968/},
          author = {Musniati, Nia}
}