@unpublished{repository1717,
           title = {lampiran mengajar farmasi fisika 4D},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof DR HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/1717/},
          author = {Elfiyani, Rahmah}
}