OTAVALIYEV, Bobirjon; HASANBOYEV, Azizbek. Raqobat ustunligi va unga erishish konseptsiyalari. Research and Implementation, [S. l.], v. 2, n. 5/2, p. 117–121, 2026. Disponível em: https://rai-journal.uz/index.php/rai/article/view/3031. Acesso em: 19 май. 2026.