@unpublished{repository3632,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {Bahasa Inggris 6B - Scientific Writing},
            note = {Unpublished},
          author = {Tri Wintolo Apoko, Tri},
             url = {http://repository.uhamka.ac.id/id/eprint/3632/}
}