@unpublished{repository11530,
            year = {2015},
          school = {Universitas Persada Indonesia Y.A.I},
            note = {Unpublished},
           title = {Tesis Safier Ramdani},
           month = {December},
             url = {http://repository.uhamka.ac.id/id/eprint/11530/},
          author = {Safier Ramdani, Safier}
}