I. Anchía-Umaña, A. Elizondo-Monge, S. Monge-Poltronieri, I. Revuelta-Sánchez, B. Sánchez-Ureña, and J. C. Gutiérrez-Vargas , Trans., “Preferences of Students of Free Courses on the Modalities of Fitness or Wellness According to Sex”, Rev. Electr. Educare, vol. 23, no. 3, pp. 1–14, Jun. 2019, doi: 10.15359/ree.23-3.10.