Carrasco Beltrán, H. J., Reigal, R. E., Fernández Uribe, S., Vallejo Reyes, F., & Chirosa Ríos, L. J. (2018). Self-determined motivation and state of flow in an extracurricular program of Small Sided Games. Anales De Psicología Annals of Psychology, 34(2), 391–397. https://doi.org/10.6018/analesps.34.2.258621