@unpublished{repository35223,
           title = {Surat Tugas dan Sertifikat Seminar Kesehatan},
            note = {Unpublished},
       publisher = {Uhamka},
             url = {http://repository.uhamka.ac.id/id/eprint/35223/},
          author = {Agustin Yumita, Agustin}
}