@unpublished{repository38386,
           title = {Sertifikat Seminar Nasional BK Universitas Riau},
       publisher = {Uhamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/38386/},
          author = {Dini Chairunnisa, Dini}
}