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, vol. 30, no. 1, Nov. 2026, pp. 30-36, doi:10.46687/jsar.v30i1.477.