@unpublished{repository42824,
           title = {Surat Tugas, Sertifikat dan Materi Presentasi SNAMUN 10th},
            note = {Unpublished},
       publisher = {UHAMKA},
          author = {Martriwati, Martriwati},
             url = {http://repository.uhamka.ac.id/id/eprint/42824/}
}