RYSBEKOV, T.Z.; NARIMAN, A.B. Foreign capital penetration in the oil industry Western Kazakhstan during the First World War: history and problems . Bulletin of the Karaganda university History. Philosophy series, [S. l.], v. 97, n. 1, p. 122–127, 2020. DOI: 10.31489/2020hph1/122-127. Disponível em: https://ejh.buketov.edu.kz/history-philosophy-vestnik/article/view/256. Acesso em: 27 sep. 2026.