ICHSA JANAND, Handy; SANTI, Diana; RAHAYU, Rina. Representation of Environmental Awareness in the Song Plastic Tree: A Semiotic Study Based on Ferdinand de Saussure’s Theory. LITERA : Jurnal Bahasa Dan Sastra, [S. l.], v. 11, n. 2, p. 145–152, 2025. DOI: 10.36002/litera.v11i2.3939. Disponível em: https://jurnal.undhirabali.ac.id/index.php/litera/article/view/3939. Acesso em: 27 jul. 2025.