@unpublished{repository19821,
           title = {SK, BAP, Daftar Hadir, DPNA Observasi dan konservasi 5A},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/19821/},
          author = {Gufron Amirullah, Gufron}
}