ЭГ-15 va ЭГ-20 TIPIDAGI GIDRAVLIK EKSKAVATRLARNI QO ‘LLASH ORQALI FOYDALI QAZILMA KONLARINI OCHIQ USULDA QAZIB OLISHNI SAMARADORLIGIMI OSHIRISH. (2022). Uzbek Scholar Journal, 10, 298-302. https://uzbekscholar.com/index.php/uzs/article/view/380