Otabek, Zaripov, Umirzoqov Murodjon, and Eshbekov R Otabek. “LAGRANJ KO‘PAYTUVCHILARI YORDAMIDA XALQARO OLIMPIADA TENGSIZLIKLARINI ISBOTLASH”. FAN, TA’LIM VA AMALIYOT INTEGRATSIYASI 4, no. 3 (May 30, 2023). Accessed November 21, 2024. https://journal.bilig.uz/isepsmj/article/view/1068.