ET. AL., R. N. . Politeness in Language of Riau Malay Students: A Linguistic Phenomenon. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 13, p. 5250–5258, 2021. DOI: 10.17762/turcomat.v12i13.9715. Disponível em: https://textitlejournal.com/turcomat.org/index.php/turkbilmat/article/view/9715. Acesso em: 12 sep. 2025.