@unpublished{repository46947,
           title = {Sertifikat HKI POB Sri Lestari H dkk},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/46947/},
          author = {Handayani, Sri Lestari}
}