Stachoń, Aleksandra, Anna Burdukiewicz, Jadwiga Pietraszewska, Justyna Andrzejewska, and Tadeusz Stefaniak. “Improving Body Composition and Strength in Athletes through a 4-Month Combined Martial Arts and Strength Training Program”. Journal of Education, Health and Sport 6, no. 6 (June 21, 2016): 445–458. Accessed December 9, 2023. https://apcz.umk.pl/JEHS/article/view/3617.