O‘ZGARMAS KOEFFITSIYENTLI CHIZIQLI BIR JINSLI DIFFERENSIAL TENGLAMALARNI YECHISH JARAYONIDA AKTDAN FOYDALANISH. JSIRU. 2024;2(4):47-54. Accessed November 24, 2024. https://universalpublishings.com/~niverta1/index.php/jsiru/article/view/5047