Martinez-Baena, Alejandro, et al. “Factores Predictores De La Actividad física En Escolares españoles De Acuerdo a Su Estado De Peso (Predictive Factors of Physical Activity in Spanish Students Based on Their Weight Status)”. Retos, vol. 33, Jan. 2018, pp. 74-80, https://doi.org/10.47197/retos.v0i33.52807.