@unpublished{repository9813,
           title = {Genap 20-21 surat tugas workshop virtual lab},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/9813/},
          author = {Laksanawati, Wahyu Dian}
}