Sayifov BZ o‘g‘li, Toshboboyev S. O‘ZBEKISTON RESPUBLIKASIDA SERTIFIKATLASHTIRISH TIZIMINING AHAMIYATI. ERUS [Internet]. 2023 Jun. 30 [cited 2024 Nov. 22];2(6):253-6. Available from: http://erus.uz/index.php/er/article/view/3311