@unpublished{repository3597,
       publisher = {Universitas Muhammadiyah Prof. Dr. HAMKA},
           title = {Bap,Presensi,Nilai Kalkulus TI 2E},
            note = {Unpublished},
          author = {Heriyani, Oktarina},
             url = {http://repository.uhamka.ac.id/id/eprint/3597/}
}