@unpublished{repository40446,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
           title = {Chujokyuu Choukai 4A},
             url = {http://repository.uhamka.ac.id/id/eprint/40446/},
          author = {Natalia, Ana}
}