Hernández PZ, Montes Mata KJ, Valenzuela Jurado F. Autoeficacia para el ejercicio físico antes y durante la Pandemia Covid-19 (Self-efficacy for physical exercise before and during the Covid-19 Pandemic). Retos [Internet]. 2023 Jan. 2 [cited 2025 Dec. 16];47:1041-5. Available from: http://207.180.252.49/index.php/retos/article/view/90792