SAPUTRA, Ganda. Analisis Semiotika Komposisi Musik 4™33™ Karya John Cage. In Laboratory Journal: Jurnal Seni Pertunjukan dan Seni Rupa, [S. l.], v. 1, n. 2, p. 161–166, 2023. DOI: 10.24114/ilj.v1i2.50000. Disponível em: http://jurnal.unimed.ac.id/2012/index.php/inlab/article/view/50000. Acesso em: 20 may. 2025.