ADAMBEK, B.K. Conquest of Russia and Eastern Slavic lands by Batu Khan in 1237–1242 and the policy of Ulys (Golden Horde) . Bulletin of the Karaganda university History. Philosophy series, [S. l.], v. 99, n. 3, p. 21–30, 2020. DOI: 10.31489/2020hph3/21-30. Disponível em: https://ejh.buketov.edu.kz/history-philosophy-vestnik/article/view/499. Acesso em: 27 sep. 2026.