BULAI, M., and Alexandra CEHAN. “TENDENCIES IN THE CLASSIFICATION AND HIERACHIZATION OF TOURISM RESOURCES”. Studia Universitatis Babeș-Bolyai Geographia 60, no. 1 (April 20, 2015): 187–198. Accessed September 22, 2024. http://193.231.18.162/index.php/subbgeographia/article/view/5713.