Tzetzis Γ.; Goudas Μ.; Kyratsou Ε. A Comparison of Physical Activity Levels, Goal Orientations and Perceived Competence in 5th and 6th Grade Elementary School Students at Physical Education Classes . Inquiries in Physical Education and Sport, [S. l.], v. 3, n. 1, p. 1–12, 2005. DOI: 10.26253/heal.uth.ojs.ispe.2005.1064. Disponível em: Acesso em: 23 jun. 2024.