SUNDUI, Ulziimaa. A study on the development of the image and content of mongolian postage stamps. Mongolian Journal of Arts and Culture, [S. l.], v. 25, n. 49, p. 212–223, 2024. DOI: 10.69561/mjac.v25i49.3843. Disponível em: https://test.mongoliajol.info/MJAC/article/view/3843. Acesso em: 27 oct. 2025.