NOVRA MELISA P. HUTABARAT. Face Threatening Act of Different Ethnic Speakers in Communicative Events of School Context. Pedagogika: Jurnal Ilmu-Ilmu Kependidikan, [S. l.], v. 1, n. 1, p. 17–21, 2021. DOI: 10.57251/ped.v1i1.103. Disponível em: https://jurnal.medanresourcecenter.org/index.php/PED/article/view/103. Acesso em: 10 feb. 2025.