Zagalaz Sánchez, Mª Luisa, et al. “Relacion Entre Autoconcepto físico, Ansiedad Y Personalidad Manifestada En Usuarios De Gimnasios (Relationship Between Physical Self-Concept, Anxiety and Personality in Gym Clients)”. Retos, vol. 32, July 2017, pp. 53-57, https://doi.org/10.47197/retos.v0i32.41991.