Allanazarov , J.P. “FUNKTSIYANIŃ SHARTSIZ EKSTREMUMIN KVAZINYUTON USILINDA TABIW”. GOLDEN BRAIN 1, no. 35 (December 25, 2023): 47–54. Accessed December 22, 2024. https://researchedu.org/index.php/goldenbrain/article/view/5756.