Yeleusinova Janat Turar qizi, and Dauletmuratov Adilbay Mirzabaevich. “MAHSULOT RAQOBATBARDOSHLIGI VA UNI BAHOLASH QOIDALARI”. TADQIQOTLAR.UZ, vol. 25, no. 1, Nov. 2023, pp. 129-33, http://tadqiqotlar.uz/index.php/new/article/view/217.