VARGA, Attila. "Changes never go in the same direction" – On the book of Gábor Halász. Opus et Educatio, [S. l.], v. 10, n. 1, 2023. 10.3311/ope.552. Disponível em: https://journals.bme.hu/oee/article/view/39332. Acesso em: 5 jul. 2025.