Ketentuan Label Merek Sebagai Bentuk Representasi Grafis Dalam Pendaftaran Merek Suara di Indonesia (Studi Perbandingan Ketentuan Pendaftaran Merek Suara di Uni Eropa, Amerika Serikat, dan Indonesia) = Provisions for Label Merek as a Form of Graphical Representation in the Registration of Sound Marks in Indonesia (Comparative Study of Provisions for Sound Marks Registration in the European Union, the United States of America and Indonesia)