Tkachova, Anna, Nataliia Goncharova, and Tetyana Prylutsʹka. “Biological Determinants of Physical Activity Differentiation for Women of the First Mature Age (aged 21 to 35) Who Do Water Fitness”. Journal of Education, Health and Sport 7, no. 11 (November 30, 2017): 444–455. Accessed November 24, 2024. https://apcz.umk.pl/JEHS/article/view/7425.