ЭГ-15 va ЭГ-20 TIPIDAGI GIDRAVLIK EKSKAVATRLARNI QO ‘LLASH ORQALI FOYDALI QAZILMA KONLARINI OCHIQ USULDA QAZIB OLISHNI SAMARADORLIGIMI OSHIRISH. Uzbek. Sch. J. [Internet]. 2022 Nov. 25 [cited 2025 Oct. 2];10:298-302. Available from: https://uzbekscholar.com/index.php/uzs/article/view/380