@unpublished{repository41693,
           title = {Berita acara tutorial Kegawat daruratan},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
          author = {Erlina Pudyastuti, Erlina},
             url = {http://repository.uhamka.ac.id/id/eprint/41693/}
}