SAYFULLAYEV , S. I. o‘g‘li. MAHSULOT SIFATINI BOSHQARISH VA UNI OSHIRISH YO‘LLARI. SCHOLAR, [S. l.], v. 1, n. 15, p. 113–116, 2023. Disponível em: https://researchedu.org/index.php/openscholar/article/view/3893. Acesso em: 18 oct. 2024.