@unpublished{repository33068,
           title = {SK, BAP, DPNA, ABSEN},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr, Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/33068/},
          author = {Erizal, Erizal}
}