Hernández, Andrea, Yolanda Sánchez Matas, and Celia María Nieto. “Autoconcepto Y Actividad física En Escolares De 6º Curso De Educación Primaria (Self-Concept and Physical Activity in 6th Grade Primary School Students)”. Retos 47 (January 2, 2023): 61–68. Accessed December 16, 2025. http://207.180.252.49/index.php/retos/article/view/94640.