B., B. Хятад хэлний 了 (le) сул үгийн гарал үүслийн тухайд: On the origin of the mandarin chinese sentential particle了(le). Mongolian Journal of Foreign Languages and Cultures, [S. l.], v. 20, n. 450, p. 40–47, 2023. DOI: 10.22353/MJFLC2016105. Disponível em: https://journal.num.edu.mn/JOFLAC/article/view/2855. Acesso em: 11 jan. 2025.