Key directions of public administration in Ukraine’s national security sector: classification issues. Economics and region, [S. l.], n. 2(97), p. 6–12, 2025. DOI: 10.26906/EiR.2025.2(97).3781. Disponível em: https://ojs35.nupp.edu.ua/eir/article/view/3781. Acesso em: 23 dec. 2025.