Городиський, Микола, and Євген Шаленко. “Organization of Health at Physical Training Lessons in the Modern School”. Slobozhanskyi Herald of Science and Sport, no. 3(53) (June 30, 2016): 30–34. Accessed July 18, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/71522.