S. K. Saaya, M. V. Tanzy, and V. A. Shershneva, “Teaching mathematics in the system of pre-university education in the Republic of Tuva”, Pedagogika, vol. 88, no. 10, pp. 38–48, Oct. 2024, Accessed: Nov. 04, 2026. [Online]. Available: https://ojs.owebs.ru/pedagogika/article/view/30340