Ozimek, Irena, and Justyna Kozłowska. “IMPACT OF HOTEL CLASSIFICATION IN POLAND ON THE QUALITY OF SERVICES RENDERED”. Acta Scientiarum Polonorum. Oeconomia 19, no. 3 (September 18, 2020): 65–74. Accessed July 3, 2024. https://aspe.sggw.edu.pl/article/view/2202.