YSKAK, A.S.; ZHUMATAY, G.B. Secret office work in the system of Soviet administration of Kazakhstan (1920‒1930). Bulletin of the Karaganda university History. Philosophy series, [S. l.], v. 11329, n. 1, p. 121–131, 2024. DOI: 10.31489/2024hph1/121-131. Disponível em: https://history-philosophy-vestnik.buketov.edu.kz/history-philosophy-vestnik/article/view/856. Acesso em: 11 sep. 2026.