@unpublished{repository6950,
           title = {BAP,Presensi, Nilai Perpindahan Panas 5B},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/6950/},
          author = {Rifky, Rifky}
}