Bektassov, Shagban, and Marat Utegenov. “Grain Procurements in 1931-1932 in the Kokchetav Territory Based on the Materials of the State Archive of Akmola Region”. Bulletin of the Karaganda University History. Philosophy Series, vol. 11529, no. 3, Sept. 2024, pp. 69-81, doi:10.31489/2024hph3/69-81.