@unpublished{repository45258,
       publisher = {SMK Karya Guna Bakti},
           title = {Undangan dan Surat Tugas Narasumber di SMK Karya Guna Bhakti},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/45258/},
          author = {Sri Astuti, Astuti}
}