Anvarov , Farxod, and Sevdiyor Ahtamov. “IQTISODIYOTDA DIFFERENSIAL HISOBLASHNING QO‘LLANILISHI”. Scientific practical conference 1, no. 3 (April 1, 2026): 583–586. Accessed April 17, 2026. https://d-pressa.com/index.php/spc/article/view/513.