Diakomihalis, Mihail N, and Nikolaos-Marios Diakomichalis. “Sustainable Tourism Development Index: A Scientifically Practical Proposal”. Environmental Management and Sustainable Development 12, no. 2 (November 1, 2023): 96–113. Accessed November 24, 2024. https://macrojournal.org/index.php/emsd/article/view/202.