@unpublished{repository47899,
            note = {Unpublished},
       publisher = {SDN Ceger 01 Pagi},
           title = {Sertifikat Pemateri SDN Ceger 01 Pagi},
             url = {http://repository.uhamka.ac.id/id/eprint/47899/},
          author = {Tri Widiastuti, Haning}
}