@unpublished{repository28043,
           title = {SK, BAP, Daftar Hadir, Nilai statistik sejarah 4a},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
          author = {Trisna Roy Pradipta, TRP},
             url = {http://repository.uhamka.ac.id/id/eprint/28043/}
}