Cousins, J. M., Peterson, M. J., Christopher, A. N., Francis, A. P., & Betz, H. H. (2020). Grit-passion and grit-perseverance in ultramarathon runners. Journal of Human Sport and Exercise, 16(4).
Category
Cousins, J. M., Peterson, M. J., Christopher, A. N., Francis, A. P., & Betz, H. H. (2020). Grit-passion and grit-perseverance in ultramarathon runners. Journal of Human Sport and Exercise, 16(4).