@unpublished{repository9169,
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {PP Materi Ajar Mata Kuliah Konsep Dasar Fisika},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/9169/},
          author = {Handayani, Sri Lestari}
}