@unpublished{repository17922,
           title = {Surat Permohonan Narsum},
            note = {Unpublished},
       publisher = {Faculty of Medicine Muhammadiyah University of Prof. Dr. HAMKA},
            year = {2021},
             url = {http://repository.uhamka.ac.id/id/eprint/17922/},
          author = {Agus Rahmadi, Agus}
}