Pomianek, I. and Kljajić, N. 2025. DEVELOPMENT OF SUSTAINABLE TOURISM DRIVEN BY POLICIES, CONSUMER TRENDS, AND ENVIRONMENTAL CHALLENGES IN POLAND AND SERBIA. Acta Scientiarum Polonorum. Oeconomia. 24, 2 (Jun. 2025), 13–29. DOI:https://doi.org/10.22630/ASPE.2025.24.2.6.