ČELEBIČ, Tanja. Non-formal education in Slovenia, compared to EU 27. Studies in Adult Education and Learning, Ljubljana, SI, v. 16, n. 3, p. 43–55, 2010. DOI: 10.4312/as.16.3.43-55. Disponível em: https://journals.uni-lj.si/AndragoskaSpoznanja/article/view/630. Acesso em: 19 nov. 2025.