@unpublished{repository33500,
           title = {Properties, Artikel, Bukti Korespondensi dan Turnitin : Jurnal Hayula},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/33500/},
          author = {Fuad, Ai Fatimah Nur}
}