Balsells, A. et al. (2011) « Needs Analysis for a Parental Guidance Program for Biological Family: Spain’s Current Situation », Revista de Cercetare si Interventie Sociala, 34, p. 21–37. Disponible sur: https://www.rcis.ro/journal/article/view/376-needs-analysis-for-a-parental-guidance-program-for (Consulté le: 6 novembre 2026).