Absadyk А. and Kabuldinov З. 2020. Orenburg Period in Akhmet Baitursynuly’s Biography: Some Unknown Archival Sources (based on materials of scientific and educational expedition). Bulletin of L.N. Gumilyov Eurasian National University. PHILOLOGY Series. 132, 3 (Sep. 2020), 18–27. DOI:https://doi.org/10.32523/2616-678X-2020-132-3-18-27.