Savdo qoidalarining buzilishiga asos bo‘ladigan holatlar!. "Conference on Universal Science Research 2023", [S. l.], v. 2, n. 9, p. 14–15, 2024. Disponível em: https://universalpublishings.com/index.php/cusr/article/view/7034. Acesso em: 23 dec. 2024.