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2. Baryshnikova, O. I. (2019). Aytem tiktan aytelmey. In: The proverb is not without reason: an explanatory dictionary of proverbs and sayings of the Nagaibak people. Magnitogorsk: Magnitogorsk Printing House CJSC. 157 p. ISBN 976-5-7114-0679-2. (In Russ.).
3. Bashirov, S. (2022). All-Russian Population Census 2021. The population of the regions. Livejournal, 03.09. Available at: https://sevabashirov.livejournal.com/539466.html (accessed 25.04.2023). (In Russ.).
4. Decree of the Government of the Russian Federation № 255 dated March 24, 2000 “On the unified list of indigenous small-numbered peoples of the Russian Federation”. Available at: https://bazanpa.ru/pravitelstvo-rf-postanovlenie-n255-ot24032000-h518626/ (accessed 19.02.2024). (In Russ.).
5. NRSGr — Baryshnikova, O. I., Shulezhkova, S. G. (2023). Nagaibaksky-Russian dictionary with grammatical marks. Moscow: FLINT. 276 p. ISBN 978-5-9765-5436-8. (In Russ.).