Baishuakova, A. and Sugirbayeva, G. 2023. Letters of the Kazakh khans of the XVII – XIX centuries and the role of Chagatay languge in diplomatic correspondence . Bulletin of the Karaganda university History. Philosophy series. 110, 2 (Jun. 2023), 61–70. DOI:https://doi.org/10.31489/2023hph2/61-70.