@unpublished{repository3406,
           title = {BAP Chujokyu Dokkai 4 A, B},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/3406/},
          author = {Sukmara, Rina}
}