Vitale Alfonso AM, Fernández Vidal E, Cabrera Soto M. Economics of education: an approach to the study of educational returns. Publ. investig. [Internet]. 2020 Jan. 20 [cited 2025 Dec. 13];14(1):1-11. Available from: https://hemeroteca.unad.edu.co/index.php/publicaciones-e-investigacion/article/view/4055