PETRUKHIN, E. A.; KATKOVA, A. M. Increasing motivation to play sports in younger schoolchildren (using the example of swimming). Pedagogika, [S. l.], v. 88, n. 6, p. 66–73, 2024. Disponível em: https://ojs.owebs.ru/pedagogika/article/view/30289. Acesso em: 9 nov. 2026.