Холодний [Holodnij A.] О. І. 2012. “The Preconditions of Perfection of Work of the Teachers on Formation of Health of the Schoolboys”. Slobozhanskyi Herald of Science and Sport, no. 5-2(33) (December):129-31. https://journals.uran.ua/index.php/1991-0177/article/view/21755.