@unpublished{repository9711,
           title = {Surat Tugas ASPBJI 2021},
            year = {2021},
           month = {August},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/9711/},
          author = {Sukmara, Rina}
}