Egas Romo, S. R., & Frómeta, E. R. (2018). Sports selection norm for Ecuadorian judo initiation in ages between 8-11 years. Lecturas: Educación Física Y Deportes, 23(242), 81-94. Retrieved from https://efdeportes.com/efdeportes/index.php/EFDeportes/article/view/558