G.T. Iskandarova, and A.M. Yusupxo’jaeva. “INDICATORS OF EFFICIENCY OF WORK OF BIOLOGICAL TREATMENT FACILITIES”. Journal of Academic Research and Trends in Educational Sciences 2, no. 2 (May 26, 2023): 349–353. Accessed May 7, 2024. http://ijournal.uz/index.php/jartes/article/view/631.