MULIANI, Mertiza Fitri; MANAF , Ngusman Abdul; TRESSYALINA, Tressyalina. Language Politeness in Indonesian Language Learning in Elementary Schools. Perspektif Pendidikan dan Keguruan, Pekanbaru, Riau, Indonesia, v. 17, n. 1, p. 90–103, 2026. DOI: 10.25299/perspektif.2026.vol17(1).25942. Disponível em: https://journal.uir.ac.id/index.php/Perspektif/article/view/25942. Acesso em: 11 jul. 2026.