@unpublished{repository19892,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
           title = {P Instrument C1 (SK, Absensi, BAP, Nilai)},
             url = {http://repository.uhamka.ac.id/id/eprint/19892/},
          author = {Hariyanti, Hariyanti}
}