@unpublished{repository27094,
           title = {STATISTIK 4C LENGKAP},
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF. DR. HAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/27094/},
          author = {Nur Busyra, Busyra}
}