Sadikov K, Aytjanova G. BA’ZI TENGSIZLIKLARNI ISBOTLASHNING LAGRANJ KO‘PAYTUVCHILARI USULI. ERUS [Internet]. 2023 Sep. 5 [cited 2025 Dec. 5];2(8):32-7. Available from: http://erus.uz/index.php/er/article/view/3664