Turpcu E, Simic V, Aytekin A, Bozkurt E, Korucuk S. Achieving Sustainable Development Goals in the Tourism Industry: A Spherical Fuzzy Methodology for Choosing the Best Sustainable Marketing Strategy for Hotel Businesses. Spec. Eng. Man. Sci. [Internet]. 2026 Apr. 19 [cited 2026 May 15];4(1):98-119. Available from: https://sems-journal.org/index.php/sems/article/view/71