Tkachenko, Mykyta. “Peculiarities of Motor Fitness Dynamics of 5th-6th Grade Students During a School Year”. Teorìâ ta Metodika Fìzičnogo Vihovannâ 20, no. 1 (March 25, 2020): 49-55. Accessed July 10, 2020. https://tmfv.com.ua/journal/article/view/1337.