@unpublished{repository54790,
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
           title = {PSO 4E1 (SK, BAP, Absen, Nilai)},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/54790/},
          author = {Hariyanti, Hariyanti}
}