@unpublished{repository48963,
            note = {Unpublished},
       publisher = {DIREKTUR JENDERAL KEKAYAAN INTELEKTUAL},
           title = {sertifikat\_2025-12-15\_Penny},
          author = {Soebagyo, Joko},
             url = {http://repository.uhamka.ac.id/id/eprint/48963/}
}