NASUTION, Tanty Aidullia; SARAGIH , Erikson; BANGUN , Peni Bernita. Illocutionary speech acts in the lyrics of Indonesian national songs with themes of struggle. Jurnal Penelitian Humaniora, Yogyakarta, Indonesia, v. 31, n. 1, 2026. DOI: 10.21831/hum.v31i1.90199. Disponível em: https://jurnal.uny.ac.id/index.php/humaniora/article/view/90199. Acesso em: 22 may. 2026.