JIYANOV, Uktam. Turizm xizmatlari samaradorligini baholash usullari va vositalari tahlili. GREEN ECONOMY AND DEVELOPMENT, [S. l.], v. 3, n. 4, 2025. DOI: 10.5281/zenodo.15266365. Disponível em: https://green-eco.uz/index.php/GED/article/view/4982. Acesso em: 26 jul. 2026.