Zurita Ortega, F., Ortega Martín, J. L., & Castro Sánchez, M. (2021). Physical Activity and Self-concept in Bilingual and Non-bilingual Schools: An Analysis through Structural Equations. Porta Linguarum An International Journal of Foreign Language Teaching and Learning, (32), 23–35. https://doi.org/10.30827/portalin.vi32.13678