@unpublished{repository3766,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {Laporan Penelitian},
             url = {http://repository.uhamka.ac.id/id/eprint/3766/},
          author = {Supriansyah, Supriansyah}
}