C. . Fridrich, «Using effective student-centred activities to meet current challenges at Austrian schools», Rev. complut. educ, vol. 17, n.º 2, pp. 69–91, nov. 2006, Accedido: oct. 14, 2024. Disponible en: https://revistas.ucm.es/index.php/RCED/article/view/RCED0606220069A