@unpublished{repository7447,
           title = {SURAT TUGAS KONFERENSI 2021},
            year = {2021},
            note = {Unpublished},
           month = {January},
       publisher = {UNPUBLISHED},
             url = {http://repository.uhamka.ac.id/id/eprint/7447/},
          author = {TRESNAWATY, YULISTIN}
}