BERDIYEV, Anvar. Samarqand viloyatida xizmat ko‘rsatish sohasining holati va innovatsion rivojlanish tendensiyalari tahlili. GREEN ECONOMY AND DEVELOPMENT, [S. l.], v. 1, n. 8, 2023. Disponível em: https://yashil-iqtisodiyot-taraqqiyot.uz/journal/index.php/GED/article/view/1238. Acesso em: 2 feb. 2026.