Marjona Nurmuhammadqizi Saidmamadova and Maqsadbek Karimo’g’li G’ulomov (2022) “YUQORI TARTIBLI DIFFERENSIAL TENGLAMALAR. TARTIBI PASAYUVCHI DIFFERENSIAL TENGLAMALAR. IKKINCHI TARTIBLI O’ZGARMAS KOEFFISIYENTLI, BIR JINSLI VA BIR JINSLI BO’LMAGAN DIFFERENSIAL TENGLAMALAR”, European Journal of Interdisciplinary Research and Development , 10, pp. 151–156. Available at: http://ejird.journalspark.org/index.php/ejird/article/view/242 (Accessed: 19 April 2025).