Bafoev , Bakhrom Botirovich, and Nozim Qosimovich Hojiqurbonov. “VUP-4 UNIVERSAL VAKUM STANSIYASI YORDAMIDA PURKASH ORQALI YUPQA GRAFIT PLYONKALARINI OLISH”. Educational Research in Universal Sciences 3, no. 5 (April 28, 2024): 100–103. Accessed November 24, 2024. http://erus.uz/index.php/er/article/view/6262.