@unpublished{repository52280,
       publisher = {Universitas Muhammadiyah Prof DR HAMKA},
           title = {Bukti Prak helmin 3B},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/52280/},
          author = {Nikmatullah, Nurul Azmah}
}