Uncovering Language in Business Communication Space: Variation between Formal and Informal Language in Mandailing Natal. Feedback International Journal of Communication, [S. l.], v. 1, n. 1, p. 25–38, 2024. DOI: 10.62569/fijc.v1i1.10. Disponível em: https://ejournal.agungmediapublisher.com/index.php/fijc/article/view/10. Acesso em: 23 nov. 2024.