Kubiyeva, S., T. Botagariev, A. Akhmetova, P. Tissen, E. Zhetimekov, M. Bobyreva, N. Mambetov, and A. Aralbaev. “Specificity of Physical Development and Physical Preparation of Schoolchildren of Orenburg and Aktobe Cities”. Journal of Human Sport and Exercise 14, no. 5proc (December 23, 2019): S2037-S2051. Accessed May 20, 2024. https://www.jhse.ua.es/article/view/2019-v14-n5-proc-physical-development-physical-preparation-schoo.