CICHOWSKA, J.; MREŁA, A.; ZAWADKA, J. Analysis of demand for qualified tourism organized by branches of the Polish Tourist and Sightseeing Society (using fuzzy relations). Turystyka i Rozwój Regionalny, [S. l.], n. 21, p. 19–29, 2024. DOI: 10.22630/TIRR.2024.21.2. Disponível em: https://tirr.sggw.edu.pl/article/view/9864. Acesso em: 21 lis. 2024.