Brighouse, Harry. «Paying for Higher Education: Are Top-Up Fees Fair? Does Justice Require Free Access?». ÉTICA, ECONOMÍA & BIEN COMÚN 2, no. 1 (enero 12, 2024). Accedido abril 6, 2025. https://journal.upaep.mx/index.php/EthicsEconomicsandCommonGoods/article/view/60.