М, Хурметхан. Катастрофизм ба орчин үе. Journal of International Studies, [S. l.], v. 4, n. 4, p. 84–91, 2006. DOI: 10.5564/jis.v4i4.2164. Disponível em: https://test.mongoliajol.info/JIS/article/view/2164. Acesso em: 27 oct. 2025.