KERIM SHAMIDZADE, Agha. Modeling the Performance Efficiency of Tourism Enterprises in Azerbaijan. Porta Universorum, [S. l.], v. 1, n. 9, p. 107–117, 2025. DOI: 10.69760/portuni.0109009. Disponível em: https://egarp.lt/index.php/JPURM/article/view/421.. Acesso em: 27 nov. 2025.