HELNI TRI AGUSTININGRUM; IKA SEPTIANA; ARISUL ULUMUDDIN. PRINSIP KESANTUNAN BERBAHASA PADA TEKS NEGOSIASI KARYA PESERTA DIDIK KELAS X IPA. Jurnal Bastra (Bahasa dan Sastra), [S. l.], v. 8, n. 1, p. 1–8, 2023. DOI: 10.36709/bastra.v4i1.30. Disponível em: https://bastra.uho.ac.id/index.php/journal/article/view/30. Acesso em: 2 may. 2026.