@unpublished{repository12469,
           title = {Hasil Cek Turnitin artikel The effect of ice-breaking using
stand-up comedy on students'mathematical belief system},
            note = {Unpublished},
       publisher = {Uhamka},
             url = {http://repository.uhamka.ac.id/id/eprint/12469/},
          author = {Wahidin, Wahidin}
}