Yakovlev, Boris, Olga Litovchenko, and Irina Aksarina. “TEENAGE STUDENTS MOTIVES OF INTEREST AND SATISFACTION WITH PHYSICAL EDUCATION AND SPORTS”. Psychology. Psychophysiology 14, no. 2 (July 11, 2021): 46-54. Accessed October 12, 2025. https://jpps.susu.ru/jpps/en/article/view/689.