@unpublished{repository56276,
           title = {Surat Tugas dan Sertifikat Narasumber di SMKN 42 jakarta},
       publisher = {FKIP UHAMKA},
            note = {Unpublished},
          author = {Heriyani, Eka},
             url = {http://repository.uhamka.ac.id/id/eprint/56276/}
}