“YUQORI TARTIBLI DIFFERENSIAL TENGLAMALAR. TARTIBI PASAYUVCHI DIFFERENSIAL TENGLAMALAR. IKKINCHI TARTIBLI O’ZGARMAS KOEFFISIYENTLI, BIR JINSLI VA BIR JINSLI BO’LMAGAN DIFFERENSIAL TENGLAMALAR” (2022) European Journal of Interdisciplinary Research and Development, 10, pp. 151–156. Available at: https://ejird.journalspark.org/index.php/ejird/article/view/242 (Accessed: 31 July 2025).