MIGONE, Paolo. The problem of validation of psychotherapy. PNEI Review - Open access, [S. l.], n. 1, 2025. DOI: 10.3280/pnei2025oa19416. Disponível em: https://journals.francoangeli.it/index.php/pneioa/article/view/19416. Acesso em: 1 lug. 2025.