CH., T. Хятад хэлний сул хөг: Weak tone of the Chinese language. Mongolian Journal of Foreign Languages and Cultures, [S. l.], v. 21, n. 467, p. 156–161, 2023. DOI: 10.22353/MJFLC2017120. Disponível em: https://journal.num.edu.mn/JOFLAC/article/view/2786. Acesso em: 11 jan. 2025.