Yelanska , O., and O. Demidova. “Karate As a Means of Improving the Level of Physical Fitness of Middle-School Students”. Sportyvnyi Visnyk Prydniprovia, no. 3 (December 30, 2025): 53–63. Accessed April 22, 2026. https://svp.ust.edu.ua/article/view/351383.