@unpublished{repository37486,
            note = {Unpublished},
       publisher = {FEB UHAMKA},
           title = {Surat Tugas dan Sertifikat Bimtek Sinta\_Herwin},
             url = {http://repository.uhamka.ac.id/id/eprint/37486/},
          author = {Herwin, Kurniawan}
}