Simeonova, Iliana. 2025. “CHALLENGES AND MEASURES FOR ADMINISTRATIVE SECURITY AT THE LOCAL LEVEL DURING THE INTRODUCTION OF THE EUROPEAN CURRENCY UNIT (EURO) IN BULGARIA: CHALLENGES AND MEASURES FOR ADMINISTRATIVE SECURITY AT THE LOCAL LEVEL DURING THE INTRODUCTION OF THE EUROPEAN CURRENCY UNIT (EURO) IN BULGARIA”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 29 (1):117-28. https://doi.org/10.46687/jsar.v29i1.461.