Jasiński, Michał. “Tourism and Development Aid and the Socio-Economic Development Level of Geographically Disadvantaged and Least Developed Countries”. Studies of the Industrial Geography Commission of the Polish Geographical Society 33, no. 3 (September 30, 2019): 127–147. Accessed April 28, 2024. https://prace-kgp.uken.krakow.pl/article/view/4963.