“Effects of a Boxing and Zumba program on the levels of stress and sleep hygiene in fourth-year students in the Physical Education Pedagogy degree at a University of Santiago de Chile” (2025) Revista Educación Física Chile [Preprint], (281). Available at: https://revistas.umce.cl/index.php/refc/article/view/3364 (Accessed: 21 October 2026).