Ruiz-Juan, Francisco, and Antonio Zarauz Sancho. “Variables Que Hacen Adicto Negativamente a Correr Al Maratoniano español (Variables That Makes Negative Addicted to Run at Spanish Marathoner)”. Retos, vol. 21, Jan. 2012, pp. 38-42, https://doi.org/10.47197/retos.v0i21.34602.