@unpublished{repository50333,
           title = {Sertifikat HKI Vidio Musik},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/50333/},
          author = {Sri Mulyani, Sri Mulyani}
}