Fayzullayev, S. U. o‘g‘li (2023) “LOBACHEVSKIY AKSIOMASI VA UNDAN KELIB CHIQADIGAN NATIJALAR”, Educational Research in Universal Sciences, 2(18 SPECIAL), pp. 144–147. Available at: http://erus.uz/index.php/er/article/view/5384 (Accessed: 24 November 2024).