SALIYEVA SEVARA MA’MIRBEK QIZI,; QODIRJONOVA MARJONA SHOIRJON QIZI,. KOVARIANT HOSILA VA UNING TATBIQI. SAMARALI TA’LIM VA BARQAROR INNOVATSIYALAR JURNALI, [S. l.], v. 4, n. 4, p. 502–505, 2026. Disponível em: https://innovativepublication.uz/index.php/jelsi/article/view/5683. Acesso em: 28 apr. 2026.