SIMEONOVA, I. PUBLIC ADMINISTRATION AS AN ELEMENT OF NATIONAL SUSTAINABILITY IN A CHANGING GEOPOLITICAL ENVIRONMENT: PUBLIC ADMINISTRATION AS AN ELEMENT OF NATIONAL SUSTAINABILITY IN A CHANGING GEOPOLITICAL ENVIRONMENT. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, [S. l.], v. 30, n. 1, p. 30–36, 2026. DOI: 10.46687/jsar.v30i1.477. Disponível em: https://jsar.ftn.shu.bg/index.php/jsar/article/view/477. Acesso em: 5 nov. 2026.