Shchegolev V.A., Sushchenko G.V., Murinchik E.S., and Pakhodnya M.O. “Formation of Motives of Martial Arts Students in Pc Educational Psychophysical Activities”. Theory and Practice of Physical Culture, no. 8, Oct. 2024, pp. 47-49, http://tpfk.ru/index.php/TPPC/article/view/1091.