Belov M.S., Kislyakov P.A., and Silaeva O.A. “STUDY OF MORAL AND PROSOCIAL NORMS IN SPORT”. Theory and Practice of Physical Culture, no. 7 (July 2, 2023): 81–83. Accessed May 13, 2024. http://tpfk.ru/index.php/TPPC/article/view/735.