YIMER, Mohammednasir; ASMAMAW, Aemero; BIRHANU, Zerihun. Comparación del estado físico de jugadores de fútbol juveniles’ etíopes entrenados por entrenadores de sistemas de aprendizaje de entrenadores formales e informales (Comparison of physical fitness status of Ethiopian youth football players trained by coaches from formal and informal coach learning systems). Retos, [S. l.], v. 60, p. 377–382, 2024. DOI: 10.47197/retos.v60.107559. Disponível em: http://revistaretos.org/index.php/retos/article/view/107559. Acesso em: 8 dec. 2025.