Slyvka, Larysa. “The Problem of Healthkeeping of Children and Youth in Polish Educational Thought at the XV- Beginning of XX Century”. Journal of Vasyl Stefanyk Precarpathian National University 3, no. 2-3 (December 22, 2016): 68–72. Accessed November 22, 2024. https://ktipe.pnu.edu.ua/index.php/jpnu/article/view/2875.