@unpublished{repository39790,
           title = {Sertifikat Prapekerti},
       publisher = {UHAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/39790/},
          author = {Tri Widiastuti, Haning and Tri Widiastuti, Haning and WIdiastuti, Haning Tri}
}