MUSTAIN, K. Speech functions and politeness in Indonesian communication. JLT: Jurnal Linguistik Terapan, [S. l.], v. 1, n. 2, p. 19–25, 2012. Disponível em: https://jurnal.polinema.ac.id/index.php/jlt/article/view/263. Acesso em: 29 dec. 2025.