Denisov R.O., and Ponomarev V.V. “Sociological Analysis of children’s Attitudes at the Age of 11-15 Years Old Physical Education and Healthy Lifestyle”. Theory and Practice of Physical Culture, no. 5 (June 7, 2024): 67. Accessed July 22, 2024. http://tpfk.ru/index.php/TPPC/article/view/1032.