Toshpo‘latova , Shaxlo Ulug‘bek qizi. “BIRINCHI TARTIBLI BIR JINSLI DIFFERENSIAL TENGLAMALAR”. GOLDEN BRAIN 2, no. 5 (February 16, 2024): 247–251. Accessed November 21, 2024. https://webgoldenbrain.com/index.php/gb/article/view/99.