@unpublished{repository20003,
           title = {Sistem Penggerak Elektrik},
       publisher = {Uhamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/20003/},
          author = {Rosalina{,} S.T.{,} M.T., Rosalina}
}