Duclos-Bastías, Daniel, Felipe Vallejo-Reyes, Frano Giakoni-Ramírez, and David Parra-Camacho. “Validation of the Marathon Motivation Scale in Chile”. Journal of Human Sport and Exercise 16, no. 2 (April 1, 2021): 348–360. Accessed July 20, 2024. https://www.jhse.ua.es/article/view/2021-v16-n2-validation-marathon-motivation-scale-chile.