MADINA POLATOVNA SHARIPOVA. IN HIGHER MATHEMATICS, THE EXTREMUM OF A MULTIVARIABLE FUNCTION. American Journal of Public Diplomacy and International Studies (2993-2157), [S. l.], v. 1, n. 10, p. 425–429, 2023. Disponível em: http://grnjournal.us/index.php/AJPDIS/article/view/2212. Acesso em: 22 dec. 2024.