@unpublished{repository42827,
       publisher = {ADPI},
            note = {Unpublished},
           title = {Surat Tugas dan Sertifikat Pembicara Snamun 10th},
             url = {http://repository.uhamka.ac.id/id/eprint/42827/},
          author = {Siswana, Siswana}
}