VALLS, Ramona. In Memoriam: Dr Joan Tusquets. Revista Española de Educación Comparada, [S. l.], n. 4, p. 287–289, 1998. Disponível em: https://revistas.uned.es/index.php/REEC/article/view/7264. Acesso em: 26 ene. 2026.