Chovgan, R.Ya., I.M. Ivanishyn, and A.V. Prezliata. “Level of Development of the Physical Components of Social Activity Schoolchildren 10-11 Years Children Summer Camp”. Physical education of students 18, no. 2 (April 28, 2014): 50-55. Accessed November 26, 2022. https://sportedu.org.ua/index.php/PES/article/view/212.