@unpublished{repository42472,
           title = {Sertifikat Narasumber Pengabdian Masyarakat},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
          author = {Mulyani, Sri},
             url = {http://repository.uhamka.ac.id/id/eprint/42472/}
}