Sultonovа Y. TURISTIK MАHSULOTLАR VА XIZMАTLАRNI DIVERSIFIKАTSIYАLАSHDА MIQDORIY VА SIFАT JIHАTDАN KOMPLEKS DIАGNOSTIKА QILISH. KU [Internet]. 2026 Apr. 17 [cited 2026 May 15];18:244-9. Available from: https://herald.kokanduni.uz/index.php/public_html/article/view/1635