@unpublished{repository31993,
            note = {Unpublished},
           title = {bap, presensi, nilai teknik mesin},
       publisher = {Universitas Muhammadiyah Prof. DR. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/31993/},
          author = {M.Pd, Eka}
}