@unpublished{repository33067,
           title = {SK, BAP, DPNA, ABSEN},
       publisher = {Universitas Muhammadiyah Prof. Dr, Hamka},
            note = {Unpublished},
          author = {Erizal, Erizal},
             url = {http://repository.uhamka.ac.id/id/eprint/33067/}
}