@unpublished{repository6168,
           title = {berkas ajar kelas 5t},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof.Dr.HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/6168/},
          author = {rahayu, nur setiawati}
}