ABDULLAYEV SHERALI ABDUQODIR O’G’LI. CHIZIQLI TENGLAMALAR SISTEMASINING YECHIMI MAVJUD EKANLIGINI TEKSHIRISH. SAMARALI TA’LIM VA BARQAROR INNOVATSIYALAR JURNALI, [S. l.], v. 3, n. 6, p. 1027–1031, 2025. Disponível em: https://innovativepublication.uz/index.php/jelsi/article/view/3711. Acesso em: 26 jan. 2026.