@unpublished{repository37592,
            note = {Unpublished},
           title = {SK, Jadwal, BAP, Presensi, Nilai - Persamaan Diferensial 4B},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/37592/},
          author = {Tsurayya, Ayu}
}